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Cisco Call Manager 6.1 not responding for the INVITE from B2BUA

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Cisco Call Manager 6.1 not responding for the INVITE from B2BUA
Answer
7/9/09 5:04 PM
Hi,
we are testing Interoperability of our B2BUA with Cisco Call Manager 6.1,
Call made from TDM reaches Cisco Call Manager 6.1 gets routed to our B2BUA and reaches IVR application,
The outbound call which gets generated from our IVR routed to an extension of Cisco Call Manager 6.1 via B2BUA,
Issue here is Extension of Cisco Call Manager 6.1 is not responding to the INVITE messages.
 
Extension used: Cisco IP communicator

Can someone provide me inputs regarding the same?
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RE: Cisco Call Manager 6.1 not responding for the INVITE from B2BUA
Answer
6/23/10 9:52 AM as a reply to Igor Zotov.
Please provide additional details:
 
- SIP packet captures, preferably unfiltered
- Detailed call flow explication, including time stamps, DNs involved, expected vs observed SIP messaging, etc.
 
For dedicated assistance and detailed analysis, please consider opening a case via CDN Developer Services: http://developer.cisco.com/web/devservices/alldevs
 
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