[cisco-voip] CUCM trunk connection

[Matthew Loraditch]

I have used SIP for intercluster in the past as it allowed presence information to be shared. I think that answers 1 and 2, not sure about 3.

Matthew Loraditch, CCVP, CCNA, CCDA
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From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of davidytk
Sent: Thursday, December 08, 2011 9:26 AM
To: cisco-voip at puck.nether.net; ccielab at groupstudy.com
Subject: [cisco-voip] CUCM trunk connection

Hi All

For CUCM cluster interconnection, we also use inter-cluster trunk on the CUCM.

For my client standard, they use SIP trunk for the CUCM cluster inter-connection. I have some question about this design.

1.        Is it possible to use SIP trunk to the CUCM interconnection.
2.        If the design is correct, what is the advantage for using SIP trunk instead of inter-cluster trunk.
3.        As my client has Cisco SIP phone, is it the reason they need SIP trunk to the CUCM interconnection.

Thanks
Best Regards
David


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