Report Archive for

Click on a report title to go to the download page for that report.

Mitel Networks Webinar: Mitel MiCloud Connect Premier vs. 8x8 Virtual Office X5 and RingCentral Standard

Document number: 218104
Release Date: 25 Apr 2018

Tolly Group Founder Kevin Tolly hosts an ten-minute webinar discussing the findings of the Mitel MiCloud Connect Premier evaluation.

Mitel Networks Corp. commissioned Tolly to analyze the feature set of its Mitel MiCloud Connect Premier solution along with comparable solutions from 8x8, Inc. and RingCentral using product documentation.

In all the key areas analyzed, the Mitel MiCloud solution is comparable to or exceeds the offerings from 8x8 and RingCentral.

The Mitel-Tolly Report can be downloaded at #218102.

Download is in mp4 format.
VoIP
Mitel Networks Webinar: Mitel MiCloud Flex vs. 8x8 Virtual Office X8 and RingCentral Premium

Document number: 218103
Release Date: 24 Apr 2018

Tolly Group Founder Kevin Tolly hosts an twelve-minute webinar discussing the findings of the Mitel MiCloud Flex evaluation.

Mitel Networks Corp. commissioned Tolly to analyze the feature set of its Mitel MiCloud Flex solution along with comparable solutions from 8x8, Inc. and RingCentral using product documentation.

The Mitel solution builds upon its product heritage to deliver core functionality expected of business-class UC solutions along with sophisticated capabilities that rival cloud-based solutions from 8x8 and RingCentral. Mitel provides a seamless, integrated set of functionality across its core Flex offering, MiCollab, MiTeam, MiContact Center Business and MiVoice 6900 Series Phones

The Mitel-Tolly Report can be downloaded at #218101.

Download is in mp4 format.
VoIP
Mitel Networks Mitel MiCloud Connect Premier vs. 8x8 Virtual Office X5 and RingCentral Standard - Executive Summary Report

Document number: 218102ES
Release Date: 22 Jan 2018

Cloud-computing opens up significant opportunities for delivering a feature-rich unified communications (UC) experience. With decades of experience in telephony, Mitel provides UC suitable for all business needs.

Mitel has recently declared MiCloud Connect one of its two “go forward” cloud platforms. MiCloud Connect is focused on the needs of the small and medium business (SMB) market.

Mitel Networks Corp. commissioned Tolly to analyze the feature set of its Mitel MiCloud Connect solution along with comparable solutions from 8x8, Inc. and RingCentral using product documentation.

In all the key areas analyzed, the Mitel MiCloud solution is comparable to or exceeds the offerings from 8x8 and RingCentral.
VoIP
Mitel Networks Mitel MiCloud Flex vs. 8x8 Virtual Office X8 and RingCentral Premium - Executive Summary Report

Document number: 218101ES
Release Date: 22 Jan 2018

Cloud-computing opens up significant opportunities for delivering a feature-rich unified communications (UC) experience. With decades of experience in telephony, Mitel provides an extensive set of core telephony functions that form a solid base for enterprise UC. Mitel MiCloud Flex is the company’s fully-featured hosted UC service. MiCloud Flex is designed to offer businesses and enterprises a customized, feature-rich cloud solution, particularly when deploying an integrated contact center.

Mitel Networks Corp. commissioned Tolly to analyze the feature set of its Mitel MiCloud Flex solution along with comparable solutions from 8x8, Inc. and RingCentral using product documentation.

The Mitel solution builds upon its product heritage to deliver core functionality expected of business-class UC solutions along with sophisticated capabilities that rival cloud-based solutions from 8x8 and RingCentral. Mitel provides a seamless, integrated set of functionality across its core Flex offering, MiCollab, MiTeam, MiContact Center Business and MiVoice 6900 Series Phones - all of which are explored in this paper.
VoIP
Mitel Networks Mitel MiCloud Connect Premier vs. 8x8 Virtual Office X5 and RingCentral Standard

Document number: 218102
Release Date: 22 Jan 2018

Cloud-computing opens up significant opportunities for delivering a feature-rich unified communications (UC) experience. With decades of experience in telephony, Mitel provides UC suitable for all business needs.

Mitel has recently declared MiCloud Connect one of its two “go forward” cloud platforms. MiCloud Connect is focused on the needs of the small and medium business (SMB) market.

Mitel Networks Corp. commissioned Tolly to analyze the feature set of its Mitel MiCloud Connect solution along with comparable solutions from 8x8, Inc. and RingCentral using product documentation.

In all the key areas analyzed, the Mitel MiCloud solution is comparable to or exceeds the offerings from 8x8 and RingCentral.
VoIP
Mitel Networks Mitel MiCloud Flex vs. 8x8 Virtual Office X8 and RingCentral Premium

Document number: 218101
Release Date: 22 Jan 2018

Cloud-computing opens up significant opportunities for delivering a feature-rich unified communications (UC) experience. With decades of experience in telephony, Mitel provides an extensive set of core telephony functions that form a solid base for enterprise UC. Mitel MiCloud Flex is the company’s fully-featured hosted UC service. MiCloud Flex is designed to offer businesses and enterprises a customized, feature-rich cloud solution, particularly when deploying an integrated contact center.

Mitel Networks Corp. commissioned Tolly to analyze the feature set of its Mitel MiCloud Flex solution along with comparable solutions from 8x8, Inc. and RingCentral using product documentation.

The Mitel solution builds upon its product heritage to deliver core functionality expected of business-class UC solutions along with sophisticated capabilities that rival cloud-based solutions from 8x8 and RingCentral. Mitel provides a seamless, integrated set of functionality across its core Flex offering, MiCollab, MiTeam, MiContact Center Business and MiVoice 6900 Series Phones - all of which are explored in this paper.
VoIP
8x8 8x8 Virtual Office Analysis of Cloud Communications VoIP Quality Under Normal and Adverse Network Conditions

Document number: 217121
Release Date: 25 May 2017

As the modern worker is connecting to more networks in more places than ever before, it becomes critically important to utilize the services of a cloud communications provider that invests in technologies that optimizes quality of service for real-time communications. This is particularly important because network conditions may sometimes be less than ideal, or users can be switching/transitioning across different types of networks. Packet loss, delay and jitter, as well as other impairments can often be present and can potentially degrade voice quality. To deliver high-quality voice communication in the face of such conditions requires proprietary technologies and a deep understanding of the quality impairments that can affect users across different connections and clients.

8x8 commissioned Tolly to compare the voice quality of 8x8 Virtual Office in both “On net” (cloud-based VoIP-to-VoIP) and VoIP to public switched telephone networks (PSTN) environments. In the first scenario both users were cloud-connected. In the latter scenario, one user was cloud-connected while the other was connected to the traditional public telephone network.

Tests compared the 8x8 solution to Google Voice/Hangouts, RingCentral Office, and Microsoft Skype for Business Online and were run using four different client OS pairs: Apple iOS, Google Android, Apple Mac OS X and Microsoft Windows.

The 8x8 solution delivered the best voice quality in a majority of the test cases - across scenarios, client platforms and impairment conditions. In cases where 8x8 did not have the highest quality scores, its results were generally in line with the other solutions tested. In call continuity tests, 8x8 recovered calls in all test scenarios.
VoIP
Avaya, Inc. Avaya IP Office Platform Total Cost of Ownership (TCO) vs.
Cisco Systems and ShoreTel Unified Communications Platform - APPENDIX

Document number: 215164-Appendix
Release Date: 10 Dec 2015

This document serves as an appendix to Tolly report 215164, and shows the line item data behind the TCO graphs and tables presented in the report. Please refer to the actual report side-by-side to view the data presented here used in the appropriate context to compare the TCO of the Avaya IP Office Platform,Cisco Systems and ShoreTel offerings. This appendix provides details of cost elements used in the main project report, Tolly document #215164. Please use this document in conjunction with that primary document.

Click here to go to the main document.
VoIP
Avaya, Inc. Avaya IP Office Platform Total Cost of Ownership (TCO) vs.
Cisco Systems & ShoreTel Unified Communications Platform

Document number: 215164
Release Date: 10 Dec 2015

“Right-sizing” an IP telephony solution to match the size of the office environment is important, as any excess hardware, software or system costs are multiplied across offices. This is especially the case for companies that need to deploy solutions to many branch offices. It is important that the value proposition scales with the size of the office.

The Total Cost of Ownership (TCO) of a solution may be calculated in various ways, the most basic includes the cost of acquisition and software/hardware maintenance support of products. A typical product refresh/replacement cycle is five years, so the TCO results presented here include software/hardware maintenance support for a 5-year period.

Avaya Inc. commissioned Tolly to evaluate the list price costs of their current IP Office release in office environments of 250, 800, and 1,350 users - with varying numbers of remote sites users - versus the Cisco Systems’ offering and ShoreTel Unified Communications Platform. Tolly found that Avaya IP Office delivers a TCO lower or comparable to ShoreTel and less than half the cost of the Cisco Systems solution across the range of environments analyzed.
VoIP
3CLogic, Inc. 3CLogic Virtual Telephony Application Grid (V-TAG): 1,000+ Seat Distributed Contact Center Performance, Scalability and Reliability Evaluation

Document number: 214132
Release Date: 09 Sep 2014

As contact centers continue to grow in scale and complexity, administrators are often forced into situations where costly upgrades or overhauls are required in order to maintain business continuity. With the traditional telephony model, many dedicated servers are typically required for each call center deployment, and can often lead to performance bottlenecks during peak load.

3CLogic commissioned Tolly to evaluate its Virtual Telephony Application Grid cloud-based contact center solution, validating its performance and reliability benefits versus traditional, centralized server based deployments. 3CLogic’s V- TAG solution eliminates the need for any on-site server infrastructure, instead provisioning a set of shared cloud servers, capable of providing additional redundancy and far greater scalability.
VoIP
Avaya, Inc. Podcast: Avaya IP Office
 Total Cost of Ownership (TCO) vs. ShoreTel Unified Communications Platform

Document number: 213150
Release Date: 10 Sep 2013

Tolly Group Director of Engineering John Tolly hosts a nine-minute podcast discussing Tolly's Avaya IP Office comparative Total Cost of Ownership evaluation published in Tolly report 213120.

John is joined by Avaya's Senior Manager Karla Nussbaumer.

Stream from the Tolly Podcast page.

Download is in mp3 format.
VoIP
Avaya, Inc. Avaya IP Office
 Total Cost of Ownership (TCO) vs. ShoreTel Unified Communications Platform

Document number: 213120
Release Date: 18 Apr 2013

“Right-sizing” an IP telephony solution to the small or midsize office is important, as any excess hardware, software or system costs are multiplied across offices. This is especially the case for companies that need to deploy solutions to many branch offices. Furthermore, since IT support is not likely to be present at each office, it is important for vendors to provide an easy-to-use interface that allows non-technical office staff to make commonly required moves, adds and changes.

The Total Cost of Ownership (TCO) of a solution may be calculated in various ways, the simplest of which considers the cost of acquisition, installation, operation and maintenance of products/services. A typical product refresh/replacement cycle is 5 years, so the TCO of a solution includes the overall cost of owning the product over 5 years. interface that allows non-technical office staff to make commonly required moves, adds and changes.

Avaya Inc. commissioned Tolly to evaluate the TCO and ease-of-deployment of their IP Office Release 8.1 in midsize office environments of 100, 400 and 700 users versus the ShoreTel Unified Communications Platform. Tolly found that Avaya IP Office delivers a TCO savings from 29% to 38% across the three deployment scenarios used.

Click here to go to the appendix document.
VoIP
Dialogic Inc. Dialogic PowerMedia Extended Media Server (XMS) 1.1 Conference and Generated Caller Performance with Voice Quality Evaluation

Document number: 212126
Release Date: 05 Sep 2012

Software media processing deployed on standard computer server hardware is an effective alternative to specialized DSP-based hardware typically found in service provider networks supporting value-added services (VAS) applications. Dialogic’s PowerMedia Extended Media Server is a next-generation software media server product that meets the performance requirements necessary to support value-added services such as Interactive Voice Response (IVR), messaging and conferencing for service provider applications.

The performance test results published in this report confirm PowerMedia meets or exceeds criteria in areas of media server density, host CPU and memory utilization, call processing, media latency and voice quality as defined by International Telecommunication Union (ITU) for media latency and the PESQ algorithm for voice quality.
VoIP
Motorola Solutions, Inc. Motorola WiNG 5 Wireless LAN Solution Evaluation vs. Aruba Networks and Cisco Systems in Branch Office & Retail Store Deployments

Document number: 212125
Release Date: 16 Aug 2012

Enterprise-class wireless LAN (WLAN) deployments have evolved from being adjunct to the office wired LAN and are now the primary communication medium for many organizations. Increased speeds have made the WLANs capable of carrying heavier traffic loads. In parallel, the dramatic increase of tablet computing and acceptability of bring-your-own-device (BYOD) have increased both the importance of the WLAN and the challenges in managing the environment. As business expands, organizations expect headquarters-class reliability for their branch operations. When business applications are delivered wirelessly, the WLAN becomes a critical element of the branch infrastructure.

Motorola commissioned Tolly to evaluate the Motorola, Aruba and Cisco offerings in several areas especially critical in remote branch office environments. The Motorola solution, built on its WiNG 5 architecture, provided significant benefits over the competing solutions. Motorola’s deployment was less complex and scaled better than Aruba and Cisco, provided significant functionality and security benefits when branch/retail locations were disconnected from the central-site controller and offered WAN prioritization functionality not offered by the others.
VoIP
Fonality, Inc. Fonality Connect: Hosted Unified Communications Solution Comparative VoIP Total Cost of Ownership Evaluation Versus Avaya, Cisco and ShoreTel

Document number: 212103
Release Date: 08 Feb 2012

Traditionally, telephony systems require a large investment for SMBs. As more businesses search for ways to cut costs while maintaining fully functional and feature-rich products, today’s SMBs are increasingly looking to cloud-based solutions to meet their needs.

Business owners considering a change to their telephony solution must consider several factors to determine the Total Cost of Ownership (TCO) of a given solution. One-time expenses such as licenses, hardware (servers/phones), installation and training, the phones themselves, as well as ongoing operational expenses such as maintenance and power costs all must be taken into account.
VoIP
Avaya, Inc. Avaya 9600 Series Voice over IP Phones: Energy Consumption Evaluation versus Cisco Unified IP Phone 7900 Series

Document number: 210143
Release Date: 09 Sep 2010

Avaya, Inc. commissioned Tolly to evaluate the energy consumption of various models of the Avaya 9600 series of SIP-enabled IP phones and compare that data with the energy consumption data of similar VoIP phones from Cisco's Unified Phone 7900 series. VoIP
Avaya, Inc. Avaya IP Office Release 6: Small Office Deployment & TCO vs ShoreTel IP Phone System

Document number: 210126
Release Date: 20 Aug 2010

Avaya commissioned Tolly to evaluate the Avaya IP Office Release 6 solution and the ShoreTel IP Phone system solution with respect to deployment in small office (sub-20 user) environments.

Testers documented the installation process, components required and energy consumption of IP phones and other key components. This information was used to build theoretical cost models for deployments of 20, 50 and 100 users in a single location.
VoIP
Avaya, Inc. Avaya CS 1000 VoIP Solution: Power Consumption versus Cisco UCM VoIP Solution

Document number: 210105
Release Date: 09 Jun 2010

Avaya commissioned Tolly to evaluate the power consumption of their CS 1000 VoIP solution versus the Cisco UCM VoIP solution.

Tolly engineers monitored and recorded the power draw of all critical infrastructure components of the Solutions Under Test (SUTs) in an idle state. These observations were then extrapolated to obtain the operational costs, power savings, and the resultant CO2 emission savings for a 1,000-user deployment.
VoIP
Mitel Networks Mitel Unified Communications Platform, Enterprise Power Consumption Evaluation

Document number: 208345
Release Date: 09 Dec 2008

Mitel commissioned The Tolly Group to evaluate its Mitel® 3300 IP Communications Platform (ICP) to measure the energy 
required to drive critical Unified Communications solutions situated in campus headquarters, regional-office and branch-office locations.

The Tolly Group measured the power consumed (total watts) by a variety of Mitel IP voice switches and IP phones. Engineers then computed the energy 
requirements to support three enterprise scenarios — a large-scale network with headquarters, regional office and a branch office; a medium network with 350 users distributed across 20 locations, and a self-contained single-site, small branch office of 65 users. The computations factored in voice switches, phones and the power required to support them.

Testing was conducted in October 2008.

Click on the report icon to purchase the downloadable report.
VoIP
ShoreTel ShoreTel, Inc. Unified Communications Systems Evaluation of Power Consumption vs. Cisco Unified Communications Systems

Document number: 208267
Release Date: 09 Oct 2008

ShoreTel, Inc. commissioned The Tolly Group to evaluate its Unified Communications (UC) System for its power consumption when running critical IP Telephony components in campus headquarters, regional office and branch-office locations.

The Tolly Group measured the power consumed (total watts) by a variety of Shore-Gear® IP voice switches and ShorePhone® IP phones. Engineers then computed the energy requirements to support three enterprise scenarios — a large-scale network with headquarters (HQ), a medium network with a central HQ and 19 remote offices, and a selfcontained single-site small office. The computations considered all ShoreGear voice switches, phones and associated servers and the power required to support them.

The Tolly Group compared the ShoreTel Unified Communications System’s energy consumption to a Cisco Systems, Inc. solution used for a comparable deployment. A representative sample of Cisco equipment was tested for power consumption and those results were used to extrapolate the data for the three enterprise scenarios.

Click on the report icon to purchase the report.
VoIP
Nortel Nortel Converged Data Network Solution Evaluation of Energy Consumption and Projected Costs for a Converged LAN Campus, Data Center and WAN

Document number: 208298
Release Date: 08 Jul 2008

Nortel commissioned The Tolly Group to evaluate a converged network infrastructure for enterprise users utilizing a wide array of Nortel switches, routers and IP phones to determine the energy usage at critical areas of deployment and to project the energy costs of operating the equipment over a five-year span.

Tolly Group engineers compared the energy consumption of the Nortel products, in terms of the power to operate the devices, as well as the power consumed in relation to heat dissipation. Results were compared with products from Cisco Systems, Inc. Tolly Group engineers measured the energy usage (in terms of watts) for switch operation and heat dissipation for switches deployed in large- and medium-sized enterprise networks, in mid-sized companies, and enterprise branch offices. Engineers also tested IP phone endpoints from both companies.

Tests were conducted in May 2008.

VoIP
Nortel Nortel コンバージド データネットワーク ソリューション コンバージド LAN、キャンパス、データセンターおよび WAN の電力消費量および予想コストの評価

Document number: 208298JP
Release Date: 11 Jun 2008

N ortelは、Nortelのスイッチ、ルー ター、IP電話を幅広く使用する企業 ユーザーのために、重要配備エリア での電力消費量を知り、5年間での装置の運 用電力コストを予想するため、Tolly Groupにコンバージドネットワーク・インフ ラストラクチャの評価を依頼しました。

Tollyグループのエンジニアは、デバイスを稼 動させるために必要な電力、および熱放散に 関する電力消費量について、Nortel製品の電 力消費量を比較しました。その結果を Cisco System, Inc.の製品と比較しました。 中規模・大規模企業ネットワーク、中規模企 業、および企業のブランチオフィスで配備さ れるスイッチについて、スイッチの稼動およ び熱放散に必要な電力消費量(ワット)を測 定しました。また、両社について、IPフォン のエンドポイントもテストしました。

テストは2008年5月に行われました。

Download the free report
VoIP
Nortel Nortel Une solution pour le réseau convergé de données Évaluation de la consommation énergétique et projection des coûts d’un réseau convergé LAN, WAN et d'un centre de données

Document number: 208298FR
Release Date: 11 Jun 2008

N d’évaluer une infrastructure de réseau convergé destinée aux utilisateurs d’une entreprise employant une large gamme de commutateurs, routeurs et téléphones IP Nortel. Le but est de déterminer la consommation d’énergie dans les lieux critiques du déploiement et de projeter les coûts énergétiques liés à leur exploitation sur une période de cinq ans.

Les ingénieurs de The Tolly Group ont comparé la consommation énergétique des produits Nortel à ceux de Cisco Systems, Inc. Ils ont pris en compte l’énergie consommé pour faire fonctionner les dispositifs ainsi que celle associée à la dissipation de chaleur. Les ingénieurs de The Tolly Group ont mesuré la consommation électrique (en watts) des commutateurs en fonctionnement et la dissipation de chaleur des commutateurs, déployés dans des réseaux de grande et moyenne taille, dans des enterprises moyennes et dans des agences. Ils ont également testé les terminaux de téléphones IP de Nortel et Cisco.

Les tests ont été menés en mai 2008.

VoIP
Nortel Nortel Solución de red de datos convergente Evaluación del consumo eléctrico y de los costos proyectados para un campus LAN, un centro de datos y una red WAN convergentes

Document number: 208298ES
Release Date: 11 Jun 2008

Nortel encargó a The Tolly Group evaluar una infraestructura de red convergente de usuarios corporativos que utilizan una amplia variedad de conmutadores, enrutadores y teléfonos IP de Nortel, con el fin de determinar el consume energético en las áreas críticas de la implementación y elaborar una proyección de los costos energéticos asociados al funcionamiento continuado de todos esos dispositivos durante cinco años.

Los ingenieros de Tolly Group compararon el consumo energético de los productos Nortel, tanto en términos de su consume de funcionamiento como de su consumo en relación con la disipación de calor. Los resultados se compararon con productos de Cisco Systems, Inc. Los ingenieros de Tolly Group midieron tanto el consumo energético (en vatios) asociado al funcionamiento de los conmutadores como la disipación de calor de los conmutadores desplegados en redes empresariales grandes y medianas, en empresas de tamaño medio y en sucursales u oficinas remotas de empresas. Los ingenieros también probaron terminales telefónicos IP de ambas empresas.

Las pruebas se realizaron en mayo de 2008.

Download the free report
VoIP
Nortel Nortel Konvergente Datennetzlösungen Bewertung des Energieverbrauchs und der voraussichtlichen Kosten für einen konvergenten LAN-Campus sowie für ein Rechenzentrum und ein WAN

Document number: 208298DE
Release Date: 11 Jun 2008

Nortel beauftragte The Tolly Group mit der Bewertung einer konvergenten Netzwerkinfrastruktur für Unternehmensbenutzer, die zahlreiche verschiedene Switches, Router und IPTelefone von Nortel verwenden. Dabei sollten neben der Ermittlung des Energieverbrauchs in wichtigen Bereitstellungsbereichen auch die Energiekosten für den Betrieb der Geräte über einen Zeitraum von fünf Jahren prognostiziert werden.

Die Techniker von The Tolly Group ermittelten den Energieverbrauch der Nortel- Produkte bezüglich der zum Betrieb der Geräte erforderlichen Energie sowie in Bezug auf die bei der Wärmeabgabe verbrauchte Energie. Die Ergebnisse wurden mit Produkten von Cisco Systems, Inc. verglichen. Die Techniker von The Tolly Group ermittelten den Energieverbrauch (in Watt) für den Switch-Betrieb und die Wärmeabgabe durch Switches, die in großen und mittelgroßen Unternehmensnetzwerken sowie in Unternehmen mittlerer Größe und in Unternehmensfilialen eingesetzt werden. Zudem testeten die Techniker IPTelefonendpunkte von beiden Unternehmen.

Die Tests wurden im Mai 2008 durchgeführt.

Download the free report
VoIP
Nortel Nortel Converged Data Network Solution with Ethernet Routing & Application Switch Evaluation of Resilient Routing Switches for Real-Time Multimedia Traffic on Nortel Converged Data Solution Supporting Microsoft Office Communications Server 2007

Document number: 208268
Release Date: 20 May 2008

Nortel commissioned The Tolly Group to evaluate a converged network infrastructure for enterprise users utilizing its Ethernet Routing Switch (ERS) 5500 and ERS 8600 series switches for their support of Nortel’s Split Multi-Link Trunking (SMLT) and Routed SMLT (RSMLT) technologies.

Telephony and video services were built on the Microsoft Office Communications Server 2007 running in a resilient, multi-site network with each site consisting of multiple ERS 8600 units at the core, communicating with ERS 5500 and 8600 switches at the network edge. Users placed voice and video calls across the test network. Tests attempted to show the Nortel Converged Data Solution with SMLT/ RSMLT technology can support uninterrupted Microsoft Office Communications Server 2007 live communications either locally, or across the network.

Tests were conducted in February 2008.

VoIP
Borasys Smart CallGen SIP Version 2.03.116 Call Generator Performance and Functionality Evaluation

Document number: 207232
Release Date: 30 Oct 2007

BORASYS, Inc. commissioned The Tolly Group/Telecommunications Technology Association (TTA) to evaluate its Smart CallGen SIP, a SIP call generator/analyzer that generates and terminates calls based on the SIP protocol specification and provides additional functions including SIP packet monitoring/analysis and voice call-quality measurements.

Tolly Group engineers cooperated with TTA engineers to perform a battery of feature and performance tests to prove that Borasys Smart CallGen SIP provides an effective, multi-functional test solution to system operators and developers. Testing was conducted in June 2007.

VoIP
Avaya, Inc. White Paper -- Building Survivable VoIP for the Enterprise: Leveraging Avaya Multivantage Solutions to Deliver Business Continuity

Document number: 206107
Release Date: 06 Mar 2006

While IP-based telephony has introduced previously unimaginable flexibility, telephony and related applications, conversely, can now be adversely affected if IP data network outages occur to which the telephony system cannot properly respond.

Avaya built a comprehensive, multi-location Enterprise “microcosm” in the company’s Doral, FL, Customer Solutions Lab facilitiy and commissioned The Tolly Group to conduct a detailed examination of the Avaya MultiVantage solution “in action” and provide an analysis of the results and their implications for Enterprise customers.

Tolly Group tests proved that even in the most massive failure imaginable, the Avaya MultiVantage telephony anchored by Communications Manager 3.0 automatically and without any human intervention re-established a unified (i.e. 5-digit dial) corporate telephony system utilizing all of the resources in the locations that remained online. Tests demonstrated the unique survivability capabilities thatAvaya can bring to IP networks.
VoIP
Avaya, Inc. White Paper: The Business Implications of Implementing IP Telephony on Enterprise Networks

Document number: 206100
Release Date: 22 Feb 2006

Two leading IP Telephony infrastructure vendors – Avaya, Inc. and Extreme Networks, Inc. – commissioned The Tolly Group to examine the performance of a combined Avaya/Extreme IP Telephony infrastructure solution versus a comparable switching solution from Cisco Systems, Inc.

The Tolly Group measured the call quality delivered by both infrastructure solutions, as well as the impact that Quality of Service (QoS) has on voice traffic during periods of peak congestion on the ingress to the core. Basically, engineers directed Avaya voice traffic over the test infrastructure where it was carried by either the Extreme or Cisco switches.

VoIP
Verso Technologies, Inc. (TeleMate.Net Software) Verso Technologies, Inc. NetSpective M-Class Content Filter, Content Filter Evaluation for Skype Traffic

Document number: 206105
Release Date: 24 Jan 2006

Verso Technologies, Inc., a global provider of carrier and enterprise solutions, commissioned The Tolly Group to evaluate the NetSpective® M-Class Content Filter, an intelligent signature-based filtering device that maximizes network performance and security by filtering unauthorized or potentially harmful traffic according to user profiles defined by an administrator.

Tolly Group engineers subjected the NetSpective appliance to a test that measures the device’s effectiveness at blocking Skype™ traffic during the login process without affecting other benign traffic or authorized VoIP traffic (i.e. Net2Phone) passing through a test network.

The Tolly Group also examined the capability of the NetSpective appliance to monitor a constant traffic flow in excess of 3 Gbps while still blocking Skype login processes and allowing other VoIP traffic (i.e. Net2Phone) to pass unencumbered.
VoIP
3Com Corp. 3Com Switch 5500G-EI Competitive Performance and Feature Evaluation versus Cisco Systems Catalyst 3750G

Document number: 206102
Release Date: 09 Jan 2006

3Com Corp. commissioned The Tolly Group to measure the Layer 2 and Layer 3 performance of the 3Com Switch 5500G-EI 48-port switch in terms of frame/packet forwarding and percentage of frame/packet loss while handling line-rate traffic in various stack configurations. Additionally, to provide a ‘benchmark’ comparison, performance testing was done on both the 3Com Switch 5500G-EI and a comparably equipped Cisco Systems, Inc. Catalyst 3750G-48TS Gigabit Ethernet switch.

Tolly Group engineers also verified support for 19 enterprise-class features of the 3Com Switch 5500G-EI under the Tolly Verified certification program, including two Tolly First & Foremost distinctions.

As part of the feature testing, Tolly Group engineers evaluated the PoE-capable 3Com Switch 5500G-EI PWR 48-port switch for PoE support, such as the ability to power pre-standard Cisco IP phones (as these exist in many customer environments today). Engineers also tested the ability of the Switch 5500G-EI PWR to detect VoIP phones automatically and to place them dynamically into a voice VLAN, which can be configured to provide enhanced security and QoS for VoIP traffic.
VoIP
3Com Corp. 3Com Switch 5500G-EI Evaluación y Verificación de Características Competitiva Contra Cisco Systems, Inc. Catalyst 3750G- version en Español

Document number: 206102ES
Release Date: 09 Jan 2006

La compañía 3Com Corp. delegó a The Tolly Group para el desarrollo de pruebas de rendimiento en las capas 2 y 3 en el Switch 5500G-EI de 3Com de 48 puertos en el área de transmisión y pérdida de paquetes, y a la vez el soporte de tráfico “line-rate” en varias configuraciones de apilamiento. Además, para proveer una comparación “benchmark”, pruebas de desempeño fueron realizadas a ambos switches, el 3Com Switch 5500G-EI y el equivalente de Cisco Systems, Inc. Catalyst 3750G-48TS Gigabit Ethernet (GbE) switch.

Los ingenieros de Tolly Group también verificaron 19 características que provee el switch de 3Com Switch 5500G-EI bajo el programa de certificación “Tolly Verified”, incluyendo dos distinciones de Tolly “Primero & Principal”.

En las pruebas de las características del switch, los ingenieros de Tolly Group evaluaron el estándar PoE en el 3Com Switch 5500G-EI PWR 48-port de ser capaz de proveer energía a teléfonos pre-estándar de voz IP de Cisco que actualmente se utilizan a nivel empresarial. Los ingenieros también probaron la habilidad del Switch 5500G-EI PWR de detectar automáticamente teléfonos de voz sobre IP y dinámicamente configurarlos en un VLAN de voz, la cual puede ser configurada para proveer mejor seguridad y calidad de servicio para el tráfico de voz sobre IP.

Este documento es una traducción al español del documento original de Tolly Group 206102. De encontrarse algún error entre los dos documentos, el documento en ingles toma precedencia.
VoIP
Chantry Networks, Inc. (Siemens) Tolly Group White Paper — Enterprise Wireless LANs: The Importance of Roaming Performance and Other Factors in Delivering Corporate-class VoIP Services

Document number: 204127
Release Date: 27 Aug 2004

Given the VoWLAN is becoming mainstream, companies need to ensure that any wireless infrastructure they deploy not only can provide adequate RF coverage, but also provides seamless mobility so user application sessions and voice calls can roam from cell to cell without hiccups, or worse, call termination.

Chantry Networks, Inc. commissioned The Tolly Group to explore the impact that seamless mobility, low latency, low jitter and other variables have on supporting voice over wireless LANs.

Tolly Group engineers examined the delay introduced by Chantry’s BeaconMaster wireless controllers and BeaconPoint access points. In addition it offers evidence concerning the voice quality of VoWLAN calls traversing the Chantry Networks infrastructure. Further, it discusses the chief issues users must consider when supporting a voice over WLAN infrastructure.
VoIP
Chantry Networks, Inc. (Siemens) Chantry Networks, Inc., BeaconMaster 1000 Controller and BeaconPoint200 Evaluation of Wireless VoIP Roaming/Performance and Functionality

Document number: 204118
Release Date: 02 Aug 2004

Chantry Networks, Inc. commissioned The Tolly Group to evaluate its BeaconMaster 1000 WLAN controller and its BeaconPoint 200 access points to measure a variety of system performance capabilities and to assess the WLAN’s readiness to support enterprise network wireless requirements.

Tolly Group engineers benchmarked the WLAN’s capability to support multi-subnet roaming by measuring the latency incurred during the handoff of client traffic between APs connected to the same or different BeaconMaster controller. Engineers also measured the baseline packet performance of the BeaconMaster 1000 controller, and spot-checked the client capacity supported by the device. Lastly, engineers evaluated the call quality delivered by the BeaconMaster 1000 and BeaconPoint 200 elements in an enterprise-class WLAN using the R-Factor voice-quality benchmark.

Tests show that Chantry Networks BeaconMaster and BeaconPoint WLAN components are well suited to support the needs of enterprise networks, especially when handling VoIP and other latency-sensitive applications as users roam from AP to AP. Moreover, the BeaconMaster can support up to 15 toll-quality G.711 calls.
VoIP
Chantry Networks, Inc. (Siemens) Chantry Networks, Inc., BeaconMaster 1000 Controller and BeaconPoint200 VoIP Performance and Systems Throughput

Document number: 204126
Release Date: 19 Jul 2004

Chantry Networks, Inc. commissioned The Tolly Group to evaluate its BeaconMaster 1000 WLAN controller and its BeaconPoint 200 access points to measure a variety of system performance capabilities and to assess the WLAN’s readiness to support enterprise network wireless requirements.

Tolly Group engineers benchmarked the WLAN’s capability to support multi-subnet roaming by measuring the latency incurred during the handoff of client traffic between APs connected to the same or different BeaconMaster controller. Engineers also measured the baseline packet performance of the BeaconMaster 1000 controller, and spot-checked the client capacity supported by the device. Lastly, engineers evaluated the call quality delivered by the BeaconMaster 1000 and BeaconPoint 200 elements in an enterprise-class WLAN.

Tests show that Chantry Networks BeaconMaster and BeaconPoint WLAN components are well suited to support the needs of enterprise networks, especially when handling VoIP and other latency-sensitive applications as users roam from AP to AP.
VoIP
Nortel White Paper: Independent Assessment of Nortel Networks Meridian 1 PBX Conversion to Succession 1000M IP PBX

Document number: 204108
Release Date: 17 Mar 2004

Nortel Networks commissioned The Tolly Group to observe and to validate the migration of a Meridian 1 PBX to the Succession 1000M IP PBX. This hands-on exercise, conducted at The Tolly Group’s facilities in Boca Raton, Florida, provides Meridian 1 owners with a view into an actual migration from a Meridian 1 to a Succession 1000M. The goal was simple: Chronicle the effort required to transition the Meridian 1 to the Succession 1000M, plus identify the hardware and software components that are necessary to make the migration a success.

Tolly Group personnel observed a smooth and orderly transition that required a fair degree of upfront planning to ensure IP network resources were properly identified for use with the Succession 1000M.

This white paper examines the step-by-step process of cutting over a Meridian 1 to a Succession 1000M IP PBX and also assesses the impact on users and Nortel-certified installers.
VoIP
Avaya, Inc. Avaya Inc. IP Telephony “Section 508” – TTY over IP Evaluation vs. Cisco Systems

Document number: 204102
Release Date: 01 Mar 2004

Avaya, Inc. commissioned The Tolly Group to evaluate the robustness and reliability of its TTY over IP Telephony and compare those capabilities against Cisco System’s “AVVID” solution. The product suite from Avaya included Avaya Communication Manager 2.0 running on the S8700 Media Server and its G600 Media Gateway. The Cisco system consisted of CallManager, the 1751 router with a voice interface card and the ATA 188 analog telephone adapter.

Tests evaluated accuracy of transmission across IP networks under various conditions and using different vocoders. Testing was performed from December 2003 through February 2004.

Test results show that the Avaya TTY over IP implementation provides dramatically more accurate and robust transport when compared with both Cisco offerings – the 1751-VIC (voice interface card) router-based analog adapter and the standalone analog telephone adapter.
VoIP
Avaya, Inc. Avaya Inc. IP Telephony and Messaging Solutions, Accessibility Evaluation vs. Cisco Systems

Document number: 204115
Release Date: 28 Feb 2004

Avaya, Inc. commissioned The Tolly Group to evaluate the accessibility features of its IP Telephony and messaging systems and compare those capabilities to those offered by Cisco Systems, Inc.’s “AVVID” solution.

Tests spanned functions of interest to users with visual, hearing and/or speech impairments and covered technologies such as TTY integration with IP Telephony and messaging systems as well as telephony-oriented text-to-speech. The product suite from Avaya included its Avaya Communications Manager running in the Media Server S8700, Intuity(tm) AUDIX(tm) messaging system, 2420 Digital, 4620 IP and 4624 IP phones, analog interfaces to accommodate TTY devices and Avaya’s Universal Access Phone Status software. The Cisco system consisted of CallManager, Unity messaging system, 7960 IP phone, and analog interfaces for TTYs. For text-to-speech, the VTGO-PC Advanced softphone from IP blue Software Solutions was used.

Test results for TTY show that Avaya is able to leverage its long-standing support for “logical bridging” to provide a high degree of integration between its IP telephony (and digital telephony) environment – including messaging – and TTY. Conversely, Cisco’s lack of support for bridging deprives its TTY users of even basic functionality when used with its IP sets.
VoIP
Hewlett Packard Enterprise White Paper: “Dispelling VoIP Myths” with HP ProCurve Networking

Document number: 204114
Release Date: 15 Feb 2004

This comprehensive white paper, commissioned by Hewlett-Packard Co., focuses on the call quality of major VoIP solutions as they generate and transport data across an HP ProCurve IP-based switching infrastructure.

Extensive call-quality tests conducted by The Tolly Group in September 2003 show that HP’s ProCurve switching infrastructure is a fertile network transport for voice over IP (VoIP) traffic generated by a diverse set of IP PBX vendors. Test results offer conclusive evidence that the HP ProCurve switching fabric supports call quality of Cisco AVVID traffic that is on par or better than the call quality offered by AVVID traffic flowing over a Cisco network.

Finally, tests also show that some IP PBX products, such as those from Mitel Corp. offer significantly higher call quality when compared against other PBXs tested as VoIP traffic traverses the HP ProCurve network. This suggests that the Mitel VoIP PBX provides a “best-of-breed’ option for handling VoIP across an HP ProCurve network.
VoIP
Hewlett Packard Enterprise White Paper: Fostering Interoperability with VoIP Solutions via HP ProCurve Networking

Document number: 204113
Release Date: 15 Feb 2004

This comprehensive white paper, commissioned by Hewlett-Packard Co., focuses on HP’s Adaptive EDGE Architecture and the range of functionality it delivers to users of voice over IP (VoIP).

Tests sought to demonstrate that HP ProCurve switches can deliver VoIP traffic on an end-to-end basis without degrading call quality – regardless of two variables: the level of congestion and the brand of IP PBX products in use.

Readers will learn about the effectiveness of the HP ProCurve switching infrastructure to deliver VoIP traffic. Tests focus on interoperability with IP PBX products from 3Com Corp. Avaya, Cisco Systems, Mitel Corp., NEC, and Nortel Networks.
VoIP
Hewlett Packard Enterprise HP ProCurve Networking: Toll-Quality Assessment for VoIP

Document number: 204106
Release Date: 11 Feb 2004

Hewlett-Packard Co. commissioned The Tolly Group to evaluate its HP ProCurve switching line and its capability to provide a suitable infrastructure for transporting VoIP at high call quality levels. Tolly Group engineers compared the toll quality of Cisco AVVID traffic running over an HP ProCurve switching infrastructure to the toll quality delivered across a pure Cisco Catalyst network. Tolly Group engineers also examined the robustness of the HP ProCurve switching infrastructure to support high levels of VoIP call quality as the switching fabric supports VoIP traffic generated by Mitel Corp. and 3Com Corp. IP PBXs.

Engineers measured call quality across a representative switching infrastructure that included access, aggregation and core network switches; in fact, HP asked The Tolly Group to test with three different access switches to demonstrate that HP can meet a diverse set of user needs at the access level. Testing was performed in October 2003.
VoIP
Hewlett Packard Enterprise HP ProCurve Networking Infrastructure Interoperability Evaluation

Document number: 204105
Release Date: 11 Feb 2004

Hewlett-Packard Co. commissioned The Tolly Group to evaluate its HP ProCurve Networking switching line and its capability to provide a suitable infrastructure for transporting VoIP from a variety of IP PBX vendors. Tolly Group engineers evaluated the ‘interoperability’ of popular IP PBX and VoIP solutions to generate VoIP traffic that can be carried by an HP ProCurve Networking IP-based switch fabric.

Tolly Group engineers measured the baseline toll quality of voice traffic generated by tested VoIP solutions that subsequently traveled over the HP ProCurve Networking infrastructure. Engineers compared the toll-quality scores to the call quality delivered when congestion was present and QoS facilities enabled. The Tolly Group then reported the variance, if any, between the baseline and the QoS scores.

The Tolly Group tested the ‘interoperability’ of six VoIP solutions with the HP ProCurve Networking infrastructure: a 3Com NBX-100, an Avaya IP403 Office, a trio of Cisco Systems Catalyst switches and systems running Call Manager 3.1, a Mitel 3300-ICP (Integrated Communications Platform), NEC NeaxIPS and a Nortel Networks BCM200. Testing was performed in October 2003.
VoIP
Meru Networks, Inc. Meru Wireless LAN Performance: Call Quality, Scalability and QoS

Document number: 203128
Release Date: 03 Dec 2003

Meru Networks, Inc. commissioned The Tolly Group to evaluate its Meru Wireless LAN System, which consists of the Meru Access Point and the Meru Controller. The Meru AP supports 802.11 standards. The Meru Controller is a wireless LAN appliance that coordinates APs and enforces all wireless LAN policies including security, plug-and-play deployment, RF management, mobility, contention management, and Quality of Service.

Tolly Group engineers measured the toll quality of calls traversing the Meru AP, as well as determined how call quality is maintained as the number of calls handled by the AP scales. The Tolly Group also measured toll quality during user session hand off between APs. And engineers also measured the aggregate application throughput for up to 30 wireless LAN users per AP. Lastly, engineers examined the deployment time for Meru AP and other Meru wireless LAN components. Testing occurred during November 2003.

VoIP
NEC America, Inc. NEC WL2000 Series Wireless Switch/NEC WL1200 Series Access Point

Document number: 203142
Release Date: 21 Oct 2003

NEC. commissioned The Tolly Group to evaluate its WL2000 Series Wireless Switch and NEC WL1200 Access Point. The WL2000 Series Wireless Switch offers up to 24 10/100 Ethernet interfaces to provide Ethernet switching capabilities and communication paths to WL1200 Access Points. The NEC WL1200 AP is an 802.11 a/b/g device that connects to the WL2000 Series Wireless Switch via Fast Ethernet and communicated with wireless clients.

Engineers sought to determine the effectiveness of NEC products at supporting VoIP over 802.11b wireless LAN connections with key capabilities such as: QoS prioritization of VoIP over non real-time traffic, support for maximum VoIP phone loading, acceptable hand-off times for calls roaming between switches, and acceptable latency characteristics.
VoIP
Airespace, Inc. (Cisco) Airespace, Inc. Airespace 4000 Wireless Switch/Airespace 1200 Access Point

Document number: 203123
Release Date: 03 Oct 2003

Airespace, Inc. commissioned The Tolly Group to evaluate its Airespace 4000 Wireless Switch and Airespace 1200 Access Point. The Airespace 4000 Wireless Switch offers up to 24 10/100 Ethernet interfaces to provide Ethernet switching capabilities and communication paths to Airespace 1200 Access Points. The Airespace 1200 AP is an 802.11 a/b/g device that connects to the Airespace 4000 switch via Fast Ethernet and communicated with wireless clients.

Engineers sought to determine the effectiveness of Airespace products at supporting VoIP over 802.11b wireless LAN connections with key capabilities such as: QoS prioritization of VoIP over non real-time traffic, support for maximum VoIP phone loading, acceptable hand-off times for calls roaming between switches, and acceptable latency characteristics.
VoIP
Ingate Systems, AB Ingate Systems SIParator™ 40 Functionality Evaluation

Document number: 203119
Release Date: 19 Sep 2003

Ingate Systems commissioned The Tolly Group to conduct a functionality evaluation of its SIParator™ 40, an adjunct processor that works in conjunction with installed firewalls and enables the traversal of real-time SIP-based communications without compromising existing firewall security.

Tolly Group engineers subjected the SIParator 40 to 26 different SIP test scenarios representing common VoIP and instant messaging functions in each of three different deployment configurations: DMZ mode, DMZ/LAN mode and Standalone mode.

VoIP
Ingate Systems, AB Ingate Firewall™ 1400, Functionality and Performance Evaluation

Document number: 203118
Release Date: 19 Sep 2003

Ingate Systems commissioned The Tolly Group to conduct a performance evaluation of its Ingate Firewall™ 1400, a firewall designed for use in small- to medium-sized enterprises (SMEs) that supports standard functions plus incorporates a SIP proxy and a SIP registrar to handle SIP-based real-time communications such as VoIP, instant messaging and audio/videoconferencing.

Engineers subjected the Ingate Firewall 1400 to a volley of tests, including throughput benchmarks, an evaluation of the device’s SIP functionality, VPN performance benchmark, and voice call quality capabilities.

VoIP
Nortel Nortel Networks Forges Broad IP Telephony Strategy for Enterprise Nets

Document number: 203504
Release Date: 01 Jun 2003

The Tolly Group inspected Nortel Networks’ Succession 1000 IP PBX and its IP Telephony convergence architecture for a multitude of features, functions and performance — including call quality, reliability, effectiveness of management characteristics, usefulness of standard and advanced features, and availability characteristics. Nortel Networks commissioned the study.

Nortel Networks’ Succession 1000 is an IP-based platform that unifies voice and data onto a single, high-performance, QoS-enabled network infrastructure. Call and connection management are distributed across the network to guard against any single point of failure; switching is fully packet based, and management of voice and data is unified. And, with all the telephony features of a traditional PBX, and new innovative features made possible by IP technology, the Succession 1000 is an extremely elegant and scalable platform for enterprise networks.

The Tolly Group’s examination of Nortel Networks Succession 1000 IP PBX reveals a converged network architecture that is rich in features, rock solid in reliability and provides unsurpassed levels of flexibility to enable users to adopt a converged IP infrastructure at the pace they so desire.

From an architecture standpoint, Succession 1000 delivers distributed IP call processing that ensures that device failures of critical components not impact call processing to any major extent. Nortel Networks has gone to great lengths to replicate key portions of Call Server and Signaling Server software at different points across the network – providing not just secondary backup, but tertiary backup contingencies to ensure call processing continues even in the unlikely event of critical device failures.

Nortel Networks Succession architecture also provides the framework for third-party PBXs and other devices to connect into the converged network. This is extremely important for organizations that don’t wish to scrap legacy investments in PBXs, or in third-party switches at remote sites and branch offices. Utilizing Succession 1000 gateways, non-Nortel Networks gear can co-reside in a converged voice/data network utilizing an underlying IP network based largely upon Nortel Networks gear.

Testing also validated that Nortel Networks converged network infrastructure surpasses toll-quality standards for voice call quality and establishes a high watermark of “excellent” call quality at various critical points across the converged network. Certainly, Nortel Networks Succession 1000 call quality scores were as good or better than those delivered by other network products tested over time by The Tolly Group.

And, with hundreds of features, it is evident that Nortel Networks will continue to fine-tune standard IP PBX functionality as well as invent advanced capabilities such as virtual office, ad hoc conferencing and malicious call trace. From an applications perspective, all one needs is to tinker with CallPilot to understand the enormous implications it can have for any business. And any road warrior will pencil in Personal Call Director as a must-have tool. Nortel Networks is also giving users wireless options for handsets with its support for Symbol Technologies NetVision 802.11b wireless IP phones.

Lastly, Nortel Networks has pulled together voice and data management nicely under the Optivity umbrella. Initial device configuration and direct management of Succession 1000 elements is provided by the Succession 1000 Element Manager, while an Optivity Telephony Manager application is used for administrative reports, billing oversight, alarm notification and a variety of network-wide management services. And, all the while users manage Succession elements via Web interfaces, or optionally via CLI interfaces, should they so desire. Again, Nortel Networks stays true to the flexibility of providing users the options they prefer for operating and managing their converged nets.
VoIP
Hewlett Packard Enterprise Gaining an Intelligent Edge for VoIP with HP ProCurve Networking

Document number: 203505
Release Date: 15 May 2003

Organizations intent on transitioning their physically separate voice and data networks onto a single, shared transport infrastructure are seeking an economical means to unite multiple platforms without compromising the quality of either voice or data traffic.

Hewlett-Packard Co. stands behind the belief that a combination of careful upfront bandwidth provisioning, plus QoS as an insurance policy for periods of link oversubscription, is the effective way to ensure VoIP call quality.

HP commissioned The Tolly Group to conduct a comprehensive, “hands-on” evaluation of the vendor’s ProCurve networking solution as implemented by the ProCurve Adaptive EDGE Architecture.

Testing was conducted in order to better understand the HP ProCurve Adaptive EDGE Architecture and the range of functionality it delivers to users and to demonstrate that HP’s ProCurve switches can deliver toll-quality voice on an end-to-end basis – regardless of two variables: the level of congestion and the brand of IP PBX products that attach to the VoIP switching infrastructure.

The Tolly Group constructed a microcosm of an enterprise IT converged network using HP ProCurve products, and then measured and compared the call quality of VoIP traffic from three IP telephony solutions (i.e., Cisco’s AVVID traffic generated by the vendor’s Call Manager, Mitel Corp.’s 3300-Integrated Communications Platform and 3Com Corp.’s NBX-100) to learn what impact, if any, the underlying ProCurve network has on voice traffic.

Results of call quality testing demonstrate that HP’s ProCurve line delivers a level of toll quality excellence that is either on par with, or better than, other major switch makers. Moreover, tests of congestion with QoS show that ProCurve has the type of facilities necessary to ensure that VoIP traffic receives preferential treatment.

In test after test, with three different brand VoIP solutions, ProCurve delivered consistent call quality and, equally important, low delay that otherwise could imperil the quality of voice traffic. Certainly, ProCurve has delivered a level of call quality equal to or better than other IP switching fabrics tested by The Tolly Group.

The fact that ProCurve provides an effective industry-standard solution at an affordable price means that users can build their networks affordably over time with a choice of solutions and can adapt to future applications. In effect, clients get more out of technology to reduce the initial cost of ownership and provide a better return on IT infrastructure.
VoIP
Foundry Networks Foundry Networks FastIron 400/FastIron Edge 9604 Performance, High-Availability and Voice Quality

Document number: 202157
Release Date: 06 Dec 2002

Foundry Networks, Inc. commissioned The Tolly Group to evaluate a pair of enterprise-class Layer 2/3 switches: the FastIron 400 switch populated with 32 Gigabit Ethernet ports and the FastIron Edge 9604 with 96 10/100- Mbit/s ports and four Gigabit Ethernet ports. Engineers subjected the Foundry switches to VoIP call quality measurements as well as latency, throughput and high-availability fail-over tests VoIP
Siemens Enterprise Networks Siemens optiPoint 400 standard IP Telephone Competitive Performance Evaluation Versus Cisco Systems 7960G and Pingtel xpressa

Document number: 202165
Release Date: 01 Dec 2002

Siemens Enterprise Networks commissioned The Tolly Group to evaluate its optiPoint 400 standard, an IP-based telephone system that uses an Ethernet interface with a built-in, two-port Ethernet switch to deliver a wide range of functionality to the desktop over IP. Siemens asked The Tolly Group to evaluate the call quality and fetures of the optiPoint 400 standard versus IP telephones from Avaya Networks, Cisco Systems, Nortel Networks, Pingtel and Polycom, but since IP phones from Avaya, Nortel and Polycom required the use of proprietary IP PBX or IP gateway equipment that was unavailable to The Tolly Group for testing, only the Cisco and Pingtel products were evaluated head-to-head against the optiPoint 400 standard. VoIP
Extreme Networks Extreme Networks, Inc. BlackDiamond 6808/Summit48si Converged Network Benchmark versus Cisco Systems Catalyst Switches

Document number: 202158
Release Date: 01 Dec 2002

Tests reveal that a converged IP network microcosm utilizing BlackDiamond 6808 and Summit48si switches provide excellent voice quality during increasing bandwidth congestion conditions compared to Cisco Catalyst switches which could only successfully deliver prioritized voice and mission-critical data if the core switch was not heavily congested.

The Extreme Networks solution delivered consistent voice quality, latency and jitter even as congestion levels rose to 100% network utilization of core switch ports and inter-switch links, while the voice quality of the Cisco Catalyst switches tested began to suffer after just 40% of port utilization. Furthermore, the Extreme Network switches delivered business-quality audio even during periods of congestion in the network backbone while call quality on Cisco switches degraded.

For the converged IP microcosms, an Extreme BlackDiamond 6808 ver 6.2.2 served as the core backbone switch and two Summit48si ver 6.2.2 switches served as access devices. On the Cisco side, a Cisco Catalyst 6509 version 12.1(13) served as the core switch and two Catalyst 3550-48 EMI version 12.1(11) served as access devices. For the tests, engineers examined two Catalyst 6509 configurations, one with WSX6516 Gigabit Ethernet (GbE) line cards with a single switch fabric connection, and the other with WSX6816 GbE line cards with dual switch fabric connections. Extreme Networks commissioned the tests.

VoIP
ShoreTel Shoreline: The Impact of VoIP Architecture on Management, Functionality and TCO

Document number: 202500
Release Date: 01 Nov 2002

Shoreline Communications commissioned The Tolly Group to design and implement a simulation of an enterprise VoIP-enabled network capable of separately supporting Cisco System’s AVVID and Shoreline Communications Shoreline3 architectures and products.

The resulting white paper, “Cisco Vs. Shoreline: The Impact of VoIP Architecture on Management, Functionality and TCO,” contains 25 pages of analysis on the key differentiators of the two VoIP architectures.

The Tolly Group’s goal was to provide intellectual and pragmatic analysis on the relative complexity and simplicity of the VoIP architectures and the implications Shoreline3 and AVVID hold for purchasing, implementing, managing and maintaining VoIP networks.

The Tolly Group architecture examination involved a thorough evaluation of VoIP deployments at three tiers of the enterprise network: headquarters, regional offices and branch offices. The white paper offers readers an understanding of the different architectural approaches between Shoreline3 and AVVID, walks readers through a description of the deployment exercise (complete with screen shots that underscore key differences in configuration approaches), and discusses the short-term and long-term benefits of the Shoreline3 architecture over AVVID.

Click on the report icon to purchase the report.

VoIP
Siemens Enterprise Networks Siemens Skyport: Voice/Data Convergence Put to the Test

Document number: 202501
Release Date: 01 Sep 2002

When it comes to converging voice and data onto a single physical network infrastructure, network executives can benefit from a blueprint that maps out exactly how to enable voice and data traffic to coexist in harmony without robbing the performance of either. Siemens commissioned The Tolly Group recently to measure several significant attributes of Skyport that validate the network's capability to support voice and data fairly. Engineers measured voice call quality, the effect of Quality of Service (QoS) on call quality, and the application data throughput rates and application response time of business-critical applications during peak usage hours.

The LAN switching infrastructure is built around Enterasys Networksproducts.
VoIP
Quintum Technologies Quintum Technologies Tenor® VoIP MultiPath Switch Performance Evaluation

Document number: 202162
Release Date: 01 Aug 2002

Quintum Technologies commissioned The Tolly Group to evaluate the switching and routing capabilities of its Tenor VoIP MultiPath Switch. The Tenor is a VoIP gateway with integrated gatekeeper that provides both call routing and call switching capabilities. Tests investigated bandwidth optimization, auto-switching, call routing, Cisco 2600 interoperability and voice quality. VoIP
Extreme Networks Extreme Networks: Enterprise -class Convergence and QoS: Taking it to the Extreme

Document number: 202502
Release Date: 03 Jul 2002

This report examines the Quality of Service, reliability and voice quality delivered by Extreme and Cisco in their efforts to support AVVID traffic. It proves that Cisco AVVID voice over IP traffic can transit IP networks based upon Extreme Networks gear while maintaining voice quality comparable to Cisco-based IP networks Extreme Networks commissioned The Tolly Group to write this objective white paper.

The white paper discusses key issues pertaining to the convergence of voice and data on an IP network.Tolly Group engineers constructed a real-world testbed capable of stress-testing the QoS effectiveness of each vendor’s network infrastructure. Readers learn about the test methodologies engineers employed and the three different classes of tests Tolly Group engineers subjected the network to in order to measure the effectiveness of the Extreme and Cisco QoS when supporting converged applications and maintaining voice quality even under bandwidth duress.

The white paper provides detail explanations of how the test network was modeled at each network layer, including the access layer, the aggregation points, the network core and the data center. Readers may review MOS and PESQ voice quality scores for three test scenarios: a baseline, a failed core switch scenario with 70% of network traffic and a failed core switch scenario with 100% of network traffic plus bandwidth oversubscription.

VoIP
Avaya, Inc. Avaya, Inc. P330 Stackable Switching System Integrated Stackable Telephony Solution Evaluation

Document number: 202129
Release Date: 01 May 2002

Avaya Inc commissioned The Tolly Group to evaluate its P330 Stackable Switching System family to validate that the products deliver business-quality voice even during periods of link congestion. Tests also sought to prove that the Avaya P330 family invokes Quality of Service (QoS) facilities during periods of link oversubscription to ensure that high-priority traffic experiences no traffic loss while receiving the bandwidth that applications require for high-quality services. VoIP
Octasic Inc. Octasic Inc. OCT6100 versus Ditech Corp. Quad-T1 Card and Tellabs IEC-64MC2B Echo Cancellation Voice Quality Competitive Evaluation

Document number: 202117
Release Date: 01 Apr 2002

Octasic Inc. commissioned The Tolly Group to evaluate its OCT6100 Series Echo Canceller for voice quality performance in benchmark tests against two competitive offerings – a Ditech Corp. Quad-T1 Echo Canceller Card and a Tellabs Inc IEC-64MC2B echo cancellation board. The Tolly Group engineers tested Octasic’s OCT6100 Series Echo Canceller beta software before the product’s eventual packaging into its final ASIC form factor. VoIP
NEC America, Inc. NEC America, Inc. NEAX 2000 IPS IP PBX, NEC BlueFire 700 Series and BlueFire IX5010 Series IP Telephony End-toEnd Quality-of-Serivce Evaluation

Document number: 202110
Release Date: 01 Jan 2002

NEC America, Inc. commissioned The Tolly Group to evaluate the end-to-end Quality of Service and voice quality capabilities delivered by its NEAX 2000 IPS (IP PBX), an Internet Protocol telephony server that supports peer-to-peer IP voice connectivity using the NEC Series E Dterm IP phones, together with the NEC BlueFire 720/730, a chassis-based, Layer 2/Layer 3 switch, and it BlueFire IX5010, a multi-service IP switch/router. Engineers tested the QoS effectiveness of the NEC end-to-end solution to support voice over IP (VoIP) with and without “severe traffic congestion.” VoIP
Alcatel Alcatel OmniCore 5022, OmniPCX 4400, OmniStack 6024 IP Quality-of-Service Evaluation

Document number: 200208
Release Date: 01 Apr 2000

Alcatel commissioned The Tolly Group to evaluate the capabilities of its OmniCore 5022 Routing Switch, OmniPCX 4400 (a multi-application VoIP server with integrated H.323 and VoIP gateway functionality), and the OmniStack 6024 (a Layer 2 10/100 Mbit/s Fast Ethernet switch) in VoIP quality-of-service tests. Test results show that in conjunction, the three devices effectively deliver QoS, thus guaranteeing the quality of voice traffic. The devices even preserved call processing throughput during extended periods of severe network congestion and provided business-quality audio for circuit-based and VoIP calls as deemed by The Tolly Group. VoIP