Voice FXO Card Setup

Unanswered Question
Apr 19th, 2009
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Hello ALL,

I have a Cisco 2621XM, a DSP Module, a a 7960G IP Phone and a FXO Card. I want to connect my phone line at home to my Cisco Router then call from my VOIP phone to a analog on the PSTN and then receive calls from the PSTN that will ring my VOIp phone through my router. Can anyone give me an idea on how to setup the config to make this work? I have already connected the equipment. Thanks.

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Nicholas Matthews Sun, 04/19/2009 - 19:39
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This is pretty easy.

More or less the config:

int fa0/0

ip address

description interface connected to switch with phone, or directly to phone

ip dhcp excluded address

ip dhcp pool phones



option 150 ip



source ip-address

max-ephone 1

max-dn 1

ephone-dn 1

number 1000

ephone 1

mac abcd.abcd.abcd

type 7960

button 1:1

voice-port 0/0

connection plar 1000



Charlie Mayes Mon, 04/20/2009 - 04:30
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What is this option 150 all about?

I am assuming that ip address under fa0/0 should be

ip address

I will research the connection plar command to determine what it is for.


Charlie Mayes Mon, 04/20/2009 - 04:33
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My IP phone will not download the software from the TFTP on the CME Router.

This is the error it has now. Protocol Application Invalid

Everything was working fine before. Does any one know how I can fix this issue? Thanks Nick I forgot to ask about this one.


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