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dial plan issue

I'm implementing a distributed-model ip phone project. It involves about 10 sites/cities, with each site having a Call Manager & some 7910s & a gateway(3662) to PSTN, except in one site the gateway connects to a PBX. Gatekeeper is implemented too.

The customer requires the following dial plan: within each site, dial xxxx(4-digit); between sites, dial area code PLUS xxxx(4-digits). Is this possible? How?

If the project only invovles calls between ip phones, then it seems I can use Gatekeeper setting in Call Managers to do this(allow anonymous device, significant digits). But with the pbx & PSTN, I'm not sure if this still works, as I think IOS gateways don't act the same as the anonymous device(intercluster trunk protocol) allowing significant digits.

Thanks for your help in advance.


Re: dial plan issue

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If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.

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