CM4.2.3sr4b and SIP

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Mar 24th, 2009
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I want to setup SIP to provider and below is the config to the provider.

I have CM4.2.3sr4b. What do I configure on my end. I have a MGCP GW onsite runnin

c3825-adventerprisek9_ivs-mz.124-23.bin


dial-peer voice XXX voip

description SIP Outbound

session protocol sipv2

session target ipv4:192.168.X.Y

dtmf-relay rtp-nte

fax protocol pass-through g711ulaw

codec g711ulaw

no vad


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Nicholas Matthews Wed, 03/25/2009 - 08:21
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There are two options:


1) Set up SIP on your gateway. Then, set up either H323 or SIP to CUCM. This is CUBE.


2) Set up the SIP trunk directly on your CCM. Since you're on CCM 4.2, this isn't recommended since SIP support on that version isn't very good.



MGCP is a protocol that allows CCM to control analog endpoints. In the case of a SIP provider, you need either SIP or H323 to send calls to the gateway since there are no analog endpoint involved in the topology.



hth,

nick

aamercado Wed, 03/25/2009 - 20:18
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Can your provide a sample on gw piece?


Is it better better to use sip or h323 to CUCM?


Sounds like with 4.2, it is better to use h323 btwn CUCM and GW and from SIP btwn GW and provider.


TIA

bsugamele1 Thu, 03/26/2009 - 12:18
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I'm running CUCM 4.2(3)sr4b and have implemented a SIP trunk to a 2811 CUBE router to connect our system to another non Cisco platform. It works flawlessly. Just make sure you build your dial peers and dial plan correctly and you won't have any issues.

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