Low Cost, Highly Functional Voice over IP ProbeVoyager is a powerful, economical Voice over IP probe in a small and easily deployed form factor, targeted at deployment in Enterprise branch offices, workgroups, and other small groups of VoIP users. Voyager supports both passive and active VoIP testing and incorporates a passive tap for ease of installation.

Key Features• PassivemonitoringusingVQmon®provides

accurate listening and conversational quality metrics

• ActivetestingusingSIPtooriginatecallsandVQmon® for call quality measurement

• Statisticsaggregationforallcalls

• Historyofcallswithqualitybelowthreshold,withdetailed diagnostic data for each call

• Integratedpassivetapforeasyinstallationandlower cost

Voice over IP performance can be impacted by many factors, including transient periods of high packet loss and jitter due to network congestion. VoyagermeasurescallqualityusingVQmon,whichautomatically identifies periods of high and low loss and jitter, measures quality separately for each state, and combines these two quality levels using a perceptual model. This both substantially improves accuracy for overall call quality metrics and allows “good” and “bad” quality levels to be independently reported.

In addition to its passive monitoring component, Voyager includes an integrated active test agent that can place test calls to other Voyager devices, TelchemyDVQattest®testagents,orSIP-enabledendpoints such as IP phones and gateways, for advanced problem diagnosis or SLA monitoringapplications.

Voyager collects and reports call quality metrics for both live calls and test calls, including listening and conversational quality MOS and R factorscores and detailed, accurate jitter and packet loss measurements.

EnterpriseApplicationsVoyager is ideal for managing Voice over IP service quality in a branch office or workgroup, and with a cost that is comparable to an IP phone, is easily affordable for large-scaledeployments. Retail storechains,banks, insurancegroups,andother financial servicescompanies often have large numbers of small locations and the cost of typical network or VoIP probes can be prohibitive.

If users in one location are experiencing call quality problems, Voyager makes the process of troubleshooting quick and easy. With its ability to continuously monitor all VoIP calls from that location, Voyager can also identify problems before users complain.

If users in a remote branch office are having difficulties making calls to other locations, Voyager’s ability to generate test calls can make problem resolution much faster.

ServiceProviderApplicationsServiceprovidersneedacost-effectivewaytomonitorservicequalityoncustomersites,andan efficient way to perform remote troubleshooting without truck rolls. Voyager provides an ideal solution for IP Centrex/ Hosted PBX and Managed IP service management.

Voyager monitors service quality continuously and can generate alerts if problems arise. Voyager’s detailed description of poor quality calls helps in troubleshooting calls that have already completed.

In SIP environments, Voyager provides a cost-effectiveway tomonitor signaling-relatedresponsetimesandtotroubleshootsignaling-relatedproblems.

VoyagerASophisticatedVoiceOverIPProbe

© 2 0 0 8 Te l c h e m y , I n c o r p o r a t e d

Technical SpecificationsStandards Supported• RFC3550, RFC3611 - RTP, RTCP SR, RR, XR

• ITU-T G.107 with ETSI TS 101 329-5 Annex E

• RFC3261 SIP - Invite, Bye, Register

• Wide range of narrow and wideband codecs, including G.711, G.723.1, G.729A, iLBC

Software• Embedded Linux - 2.4/2.6 Kernel

• Voyager applicationMonitoring interfaces• 100Base-T Full Duplex upstream and downstream connectors

• Integrated passive tap with bypass

• PoE passthroughReporting interface• 10/100Base-T Full Duplex• Web UI, SNMP Agent

Enterprise Application of Voyager

IP Phones IP Phones

IP VPN

IP Phones

Gateway

PSTN

Main Office

Branch Offices

Service Provider Application of Voyager

CustomerSite

CustomerSite

Service Provider Network

TrunkingGateway

TrunkingGateway

PSTN

PSTN

Peering Relationships

Service Quality &Troubleshooting Data

Access Links(DSL, T1/T3, etc.)

IP

Telchemy,VQmon,SQprobe,andSQmediatorareregisteredtrademarks.SQmon,Voyager,TelchemyLogo,andVQmon-QualityAssuredLogoaretrademarksofTelchemy,Incorporated.VQmonandSQmoncontaintechnologydescribedinfourormorepatentsandpendingpatents.©2008Telchemy,Incorporated, all rights reserved.

Telchemy, Incorporated 2905 Premiere Parkway Suite 280 Duluth, GA 30097 USA

Main 866-TELCHEMY Local 678-387-3000 Fax 678-387-3008

www.telchemy.com

For information or inquiries on OEM and Private Label sales:

Tel:+1-678-387-3000Email: sales@telchemy.com

Voyagerisideallysuitedfordeploymentinsmallerbranchofficesandretailstores,providingon-premisesVoIPmonitoringandtroubleshootingateachlocation.

Voyagercanbedeployedateachcustomersite,enablingtheprovider'sServiceManagementSystemtomonitorservicequality,receiveproblemalerts,andtrouble-shoot remotely.

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