HELP!!! 7940 IP phone with SIP

[back2lifeelectronics]

Hello,

Let me start by saying that I love this community, I've learned a lot from this community. I have a 7940 IP phone that a friend changed to SIP protocol. I'm wanting to use it as a business phone. A friend told me I could get free service using Ipkall, sip.antisip.com, and google voice. Anyone know how to do this? I would like to make outgoing calls as well as receiving incoming calls. Free is fine but willing to pay a reasonable monthly fee for a single service that can simplify this. Phone plugs into a Cisco 3524 switch, using a 2821 router W/Charter broadband. Any expertise will be appreciated

[Manish Prasad]

Hello Willie,

I think cisco 3524 is an inline power switch , so you don't need any POE to get power for 7940.

First you need to configure your 2821 router as a CUCME(call manager express) and get you 7940 registered with it.

Here is the link for basic configuration on your router to support CUCME - https://learningnetwork.cisco.com/servlet/JiveServlet/previewBody/6346-102-1-20737/CCNA-Voice%20VoIP.pdf

Once you get your phone registered with CUCME router , then you need to configure dial-peer on router to get call routed to sip provider. Here is a good video to get setup sip account on google voice and CUCME router.

http://www.youtube.com/watch?v=HktGRgVHqDQ

If you get some problem in CME setup , let us know we will help you.

Thanks

Manish

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[techguy]

You should have valid credential to use this sip domain plus additional parameters like port, codec, media.

Please rate if post is helpful

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