Re: [cisco-voip] CUCM trunk connection

This chapter of the SRND should be a good read for you.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/trunks.html#wp1126
551

-Ryan

On Dec 8, 2011, at 1:44 PM, Dennis Heim wrote:

I think the goal is ultimately end to end sip anymore. If you have SIP, sccp,
etc phones, the interconnect between cm nodes should not matter. The big
advantage like Matthew said is the ability to propagate presence information
between clusters.

If you have numerous clusters, then it probably deserves a conversation of
Callmanager SME in between all your clusters to simplify your design at each
cluster.

Dennis Heim
Senior Engineer (Unified Communications)
CDW Advanced Technology Services
10610 9th Place
Bellevue, WA 98004

425.310.5299 Single Number Reach (WA)
317.569.4255 Single Number Reach (IN)
317.569.4201 Fax
dennis.heim_at_cdw.com
cdw.com/content/solutions/unified-communications/

From: cisco-voip-bounces_at_puck.nether.net
[mailto:cisco-voip-bounces_at_puck.nether.net] On Behalf OfMatthew Loraditch
Sent: Thursday, December 08, 2011 7:00 AM
To: davidytk; cisco-voip_at_puck.nether.net; ccielab_at_groupstudy.com
Subject: Re: [cisco-voip] CUCM trunk connection

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
1965 Greenspring Drive
Timonium, MD 21093
support_at_heliontechnologies.com
(p) (410) 252-8830
(F) (443) 541-1593

Visit us at www.heliontechnologies.com
Support Issue? Email support_at_heliontechnologies.com for fast assistance!

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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Received on Fri Dec 09 2011 - 12:33:52 ART