Confused by Gateway and CCM

Unanswered Question
Aug 24th, 2008

The dial-peer can be configured to route calls on Gateway. The route pattern is doing same thing as well. What is the major difference between Gateway and CCM?

Can we use gateway only to route incoming and outgoing calls? What do we need CCM for?

(we are using H.323 for VOIP)

Can anyone clear things out for me?

I have this problem too.
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Michael Owuor Sun, 08/24/2008 - 13:18

Le,

Route patterns in CallManager and dial-peers in the gateway work hand in hand. They are not necessarily mutually exclusive, and the use of one does not mean the other is not needed.

If IP phones are registered on the CallManager and they are expected to be able to be able to place calls out, then the CallManager must have route patterns which determine how CallManager will handle the numbers dialed, and where the call will be sent.

If a call must be routed through a H.323 VoIP gateway, then the gateway must have dial-peers configured, because dial-peers is the method by which the gateway determines what to do with the call.

For outgoing calls where you have CallManager controlled phones, you must have both route patterns and dial-peers configured.

For incoming calls, the gateway will always use dial-peers. The CallManager does not require route patterns to accept incoming calls.

Does this help?

Regards,

Michael.

Michael Owuor Sun, 08/24/2008 - 16:39

You're very welcome, Le. Hope the rest of your weekend goes well!

Regards,

Michael.

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