I have a question concerning the installation of a cisco UBE. This SBC is 
required for an installation. 

Typically Music on hold scenarios are handled via the sipx-bridge. I see that 
the polycom phones use an sdp event to trigger the invite to the url 
[email protected] 
Can anyone explain this process and what i might do to pass this through the 
extenal sbc. 

The Unified Boarder Element is technically designed to sit in front of a CCM 
which will supply the unicast or multicast audio. 
My traces from the cisco do show the sdp event= send only which seems to 
trigger an on hold scenario however im not sure how the entire process actually 
works in a sip gateway 


The environment: 
4.2 from iso 
Polycom 450/650 

Warm Regards 





Gabrial Casey 
Telecommunications 
Franklin American Mortgage Company 
501 Corporate Center Dr. 
Suite 400 
Franklin, TN 37067 
Direct:615-468- 2945 
Cell: 615-852-5015 
Fax: 615-628-5698 
Email:[email protected] 



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