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New Member



We have CCM 3.3(3).We are going for a 2MB link to connect to the service provider network.To access the PSTN,we have to integrate CCM with the service providers Gatekeeper(Vocaltec) which requires authentication.

We are using a 3660 router for the 2 MB link.Users should be able to access the PSTN when they dial 9(access code).

My concern is to configure the gatekeeper with authentication on CCM.

2.What will be my gateway?Can I configure the route pattern so that when the user dials 9 the call is diverted to the Service providers gatekeeper ie configure route pattern for gatekeeper which will act as a gateway.

3.If gatekeeper authentication is not possible on CCM,can I configure 3660 router as a gatekeeper which will communicate the service providers GK.In this case how should I config my CCM & 3660 router.

4.Will NATing on 3660 router affect voice calls.

Please let me know how can I configure the above.




Re: Gatekeeper

I think what you need to do here is,

Add a gatekeeper in CCM

Add a trunk (Device - > Trunk)

Select trunk type as Intercluster Trunk (Gkpr controlled) , specify a trunk name, device pool, etc...and select the gatekeeper that you added at the very bottom of the page. You can specify a tech-prefix, zone, gateway type (whether terminal/gateway) etc.

Once this is done, insert the trunk and reset it.

Now all your route patterns for calls to outside should be pointing to this trunk.

New Member

Re: Gatekeeper

I have configured trunk & gatekeeper on CCM & I am getting dial tone when I press the access code but not going beyond that.

I have configured local zone & remote zone on Gatekeeper.I have configured IZCT password for authentication with remote gatekeeper(VocalTec).

I have also tried configuring security password group.

what else Should I configure.


New Member

Re: Gatekeeper

If there is compatibility issue between CCM and VocalTec gatekeeper, you can configure 3660 router as an IP-to-IP gateway. You don't need to worry about NAT issue because two voip legs are terminated in your 3660 router.

Hope this helps.


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