Question about SIP.

Answered Question
Jan 6th, 2009
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i have a question sorry i still beginner in VOIP network,


if we use SIP at 2 gateway and each gateway will connect with ip phone (SSCP) what will happen or what is the procedure that will happen to make call ?

Correct Answer by Nicholas Matthews about 8 years 5 months ago

Hi Tito,


Works like this:


IP phone will talk SCCP to CUCM, and gateway will talk SIP to CUCM. When a call wants to be placed, the gateway or the phone will talk to CUCM. When they agree on the phone call and audio is ready, the audio will be passed directly between the endpoints.


If you want more information than that, you're going to have to be much more specific in what you're looking for.


hth,

nick

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gogasca Tue, 01/06/2009 - 17:03
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IP Phone controlled by CUCM (SCCP)?

IP Phone -- cucm --- SIP GW I assume


Correct Answer
Nicholas Matthews Thu, 01/08/2009 - 07:27
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Hi Tito,


Works like this:


IP phone will talk SCCP to CUCM, and gateway will talk SIP to CUCM. When a call wants to be placed, the gateway or the phone will talk to CUCM. When they agree on the phone call and audio is ready, the audio will be passed directly between the endpoints.


If you want more information than that, you're going to have to be much more specific in what you're looking for.


hth,

nick

titomontos Thu, 01/08/2009 - 10:18
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Thanks a lot Eng.Nick


But if you tell me the full configuration, it will be kind thing.....


Thanks....

Nicholas Matthews Thu, 01/08/2009 - 12:37
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Tito - there are anywhere between 10 and 40 lines of configuration on the gateway and pages of configuration on CUCM.


I would start by doing a cisco.com search for 'sip gateway cucm configuration' or something similar.



hth,

nick

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