[cisco-voip] integrate single CME site with central Call manager

[Kelemen Zoltan]

It's really simple actually.

In CCM you add a H.323 gateway, pointing to the IP address (or domain 
name) of the CME (Device name should be the IP address). Then you simply 
add route patterns to the CME extensions with Gateway/Route list set to 
the newly created H.323 gateway. This will usually be an IP address.

Remember, that with a H.323 gateway the registartion status will remain 
"Unknown". That's OK, as long as the CCM recognizes the IP address.

on CME side you need a dial-peer voip, with session target ipv4:<IP of 
CCM>, and destination-pattern - the CCM extensions.
If you have several IP adresses in the CMe, it would be good to bind the 
h323-gateway to one f the interfaces / IP addressses.

If something is unclear, just let me know, I'll try to clarify it.

regards,
Zoltan

Erik Erasmus (E) wrote:
>
> Hi
>
> I need a bit of advice. I want to integrate a single Call manager 
> Express site using cme 4-2 with a central call manager 4-2-3 sr2b . 
> The central CCM site has local pstn gateway and the cme remote site 
> also has local pstn gateway. All I really want to achieve is the 
> ability to allow people to make IP wan calls from the CME site to the 
> central call manager site using the 4 digit extensions of HQ and the 
> people at the central site to call the remote site using a 4 digit 
> extensions of the remote branch. The extensions are unique.
>
> Don’t want to make it too complicated – no ip to ip gateway and 
> gatekeepers available.
>
> My problem is on the call manager side – what to do there. On the CME 
> side I think I will be OK and have an example of how to set up dial 
> peer to ccm side but I am not sure what to do ion the call manager 4-2 
> side. Do I create an H323 gateway for the cme site router – do I make 
> a trunk ??
>
> Any advice will be appreciated – in terms of config on ccm side as 
> well as on the cme side.
>
> erik erasmus
>
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