04-15-2011 02:06 PM
Hi,
I'm new to VOIP. Sorry for this simple question.
We have two Cisco 2821 routers, two 7960G IP phones.
Each 2821 router has PVDM2-8 DSP module, HWIC-4ESW 4 port swtiching card, IOS 12.4(22)T3.
No any Call Manager software is loaded.
Can anyone point me to a sample configuration/how-to so I can make phone call from Router A to Router B?
Something as below:
Phone A <----> Router A <---- internal IP network ----> Router B <------> Phone B
Please note we don't have Call Manager software and we don't need fancy phone call features.
Thank you very much!
-Andrew
04-15-2011 03:20 PM
You need two analog phones. The VOIP phones you have 7960G will not work. They are dumm terminals. They need something to tell them what to do. A call agent (CUCM, CCM,) or any other call agent that can control cisco VOIP phones eg asterics.
When you do get 2 analog phones configure voip and pots dial peers
example
Configure this on both routers with the IP pointing to each other
dial-peer voice 10 voip
destination-pattern 5678 --No the analog will send to the other sides fxs port to ring the analog phone
session target ipv4:10.10.10.1 ------ ip address of the other router.
dial-peer voice 11 pots
destination-pattern 234 --- the number that will ring the phone plugged here.port 1/0 -------fxs port where your analog phone is plugged.
Dial away.
You might find ths url helpful.
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a00800e00d0.shtml
04-18-2011 10:28 AM
Hi Sanda,
Thank you very much for the quick response!
I'll read through the link you provided.
At the same time we're considering upgrade our firmware so it can support telephony-service.
Thanks again!
-Andrew
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