Avaya ClearOne Converge Pro VH20, Application Notes

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JAO; Reviewed:
SPOC 9/20/2011 Solution & Interoperability Test Lab Application Notes
©2011 Avaya Inc. All Rights Reserved.
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ClearOneVH20-SM
1. Introduction
These Application Notes describe the steps required to integrate the ClearOne Converge Pro
VH20 Conferencing Solution with Avaya Aura® Session Manager and Avaya Aura®
Communication Manager using a SIP interface. The Converge Pro VH20 links other Converge
Pro products to create a complete audio conferencing system that is integrated with an Avaya
SIP telephony network. In this compliance test, Converge Pro VH20 provided SIP connectivity
for the Converge Pro 880T equipped with a speaker and microphone. The focus of these
Application Notes is on the interoperability between Converge Pro VH20, Session Manager, and
Communication Manager.
2. General Test Approach and Test Results
To verify interoperability of ClearOne Converge Pro VH20, linking Converge Pro 880T, with
Communication Manager and Session Manager, voice calls were made to Avaya IP telephones
(SIP and H.323). All test cases were performed manually.
2.1 Interoperability Compliance Testing
Interoperability compliance testing covered the following features and functionality:
 Successful registration of Converge Pro VH20 with Session Manager.
 Voice calls between Converge Pro VH20 and Avaya IP telephones (SIP and H.323),
including proper call disconnect.
 Long duration calls.
 G.711 and G.729 codec support and code negotiation.
 Audio mute on Converge Pro VH20 and Avaya endpoints.
 Converge Pro VH20 DTMF support.
 Proper handling of unsuccessful calls due to call abort, no answer, dialing invalid
number, and called party busy.

Proper system recovery after a restart of Converge Pro VH20 and loss of IP connectivity.
2.2 Test Results
All test cases passed. One observation is that the Communication Manager Preferred Minimum
Session Refresh Interval setting in the SIP trunk group form and the Converge Pro VH20 Min-
SE Timer have to match, or incoming calls to VH20 will fail with a SIP Status message
indicating “Session Interval Too Small”.
2.3 Support
For technical support and information on Converge Pro VH20, contact ClearOne at:
 Phone: 800-283-5936 (toll free)
 Email: techsupport@clearone.com
 Website: http://www.clearone.com/support