Media Over Tcp; Network Error Recovery; Sip Dialog Recovery - Polycom RealPresence 800s Administrator's Manual

Polycom® RealPresence Collaboration Server 800s Administrator's Guide

Media Over TCP

Media is automatically transmitted through TCP when UDP, the default transport protocol,
is not available. Media over TCP is supported using the Microsoft ICE environment.
The media transport protocol type (UDP/TCP) is displayed in the Participant Properties -
Channel Status - Advanced dialog box.
The media transport protocol type is displayed for the following IP addresses:
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Network Error Recovery

When a short network error occurs, for example 5 seconds, Collaboration Server
automatically recovers, enabling calls in Microsoft Lync to continue the video or audio
conference without disconnecting. However, when a longer network error occurs, the call is
disconnected. The presence status mode is correctly updated from Busy to Available. There is
no configuration required for this procedure.

SIP Dialog Recovery

Collaboration Server has the ability to automatically recover from a SIP dialog failure, which
can occur in long duration calls in Meeting Rooms using the Microsoft Lync client. There is
no configuration required for this procedure.
I-6
Collaboration Server IP Address
Participant IP Address
ICE Collaboration Server IP Address - only when ICE is functional
ICE Participant IP Address - only when ICE is functional
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