[cisco-voip] CUCM trunk connection

[Carlos G Mendioroz]

Hey Frog,

SIP trunks can be used as ICTs, so I don't see why you say "if you don't 
want funky features". Is there any feature not supported by SIP trunks ?

Also, cisco is moving from H.323 to SIP (slowly but steadily) IMHO.
Would you please share some support info for "H323 is the preferred 
method" ?

-Carlos

Radioactive Frog @ 10/12/2011 07:45 -0300 dixit:
> In a nutshell,
> 
> 1. ICT trunk = need to keep features on like Extension mobility between
> clusters (this is one of 100's feature)
> 2. SIP trunk = if you just need a call between cluster users but don't want
> funky features to maintain (see above#1)
> c. H323 trunk = same as sip trunk. however this is prefered method over SIP.
> 
> On Sat, Dec 10, 2011 at 4:33 AM, Ryan Ratliff <rratliff at cisco.com> wrote:
> 
>> 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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-- 
Carlos G Mendioroz  <tron at huapi.ba.ar>  LW7 EQI  Argentina