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New Member

CME and ITSP

I have a CME 3.3 with Cisco 2651 for a private network.

Now I'd like to route calls to the PSTN and I want to know how doing it.

I have 2 ethernet cards in the router, I'm connected to internet via MPLS network. But I don't have E1 card for connecting PSTN.

Is it possible to do this?

Can I assign DDI numbers to the internal extensions?

3 REPLIES
Silver

Re: CME and ITSP

I'm afraid, that will not be possible without an E1 card.

Hall of Fame Super Silver

Re: CME and ITSP

carenas123 is correct, in order to connect to PSTN you need a Voice Gateway such as PRI (E1 or T1) or FXO card. The other possiblity is to integrate with your service provider via SIP and let them handle the integration to PSTN. Check with your provider if they offer SIP trunking.

HTH,

Chris

New Member

Re: CME and ITSP

Yes they offer sip accounts,

parameters form provider are:

sip.provider.com

login and password port 5060

I have configured this in the sip-ua but I have problems.

All of the IP phones I have behond the router try to authenticate.

I only want 1 authentication from the router

Then i need to tell the internal extensions when they have to go to the PSTN via the SIP provider.

Please can you help me? Is there any example?

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