Cisco TelePresence Advanced Media Gateway Series

Calls through an AM Gateway drop after 30 seconds or less

All my calls through an AM gateway drop after about 30 seconds or sooner

On the AM Gateway VCS, go to System > DNS. Are there values for the settings Local host name and Domain name?

If both of these are set, the Cisco VCS will use these as a fully-qualified domain name (FQDN) in SIP signalling to the Lync/OCS server. In order for Lync/OCS to be able to use this information, it must be able to perform a DNS lookup on the FQDN.

To rectify this, ensure that the DNS server used by the Lync/OCS server contains an entry for the Cisco VCS FQDN.

This article applies to the following products:

  • Cisco TelePresence Advanced Media Gateway 3600

July 6th, 2011TAA_KB_642