System information

Polycom RealPresence Platform SIP Integration with CUCM
57
b Set the Telepresence Layout Mode to the layout desired. This affects the video
experience of the conference. Set to Room Switch for the most immersive experience
with other multi-screen systems. Conference attendees will see the multi-screen
endpoint with the current ‘active speaker’ for the conference. Set to Continous
Presence for meetings in which all or a subset of participants should be viewable for
the conference.
8 Click OK.
Troubleshooting
This section provides assistance in troubleshooting any issues you may have with Polycom
RealPresence Platform SIP Integration with CUCM.
CUCM sends calls to a DMA registered endpoint but endpoint does not ring
Possible Cause: CUCM is sending the SIP URI as <alias>@<ip_address_of_DMA>
Workaround: In CUCM, if the customer adds the DMA SIP Peer as an IP Address, then CUCM
will send the call in this format. There are two options. In CUCM, add the DMA peer
desitination as a FQDN, and ensure the SIP Profile associated with the CUCM SIP Trunk is
configured with “Use Fully Qualified Domain Name in SIP Requests” enabled.
Alternatively, in DMA under Call Server => Domains, add the IP Address of the DMA Server as
a domain and calls will be accepted by DMA in this format.