Two 2921 Routers

[Nikolay Nikolaevich]

How possible to perform direct call between two VoiP routers, such as I have one office with 2921 CUCME+VOip users and another one office with CUCME 2921+VOip users, how users perform VOIP call between these networks. 

[Chris Deren · Accepted solution]

In addition to dial-peers add the following on both sides:

voice service voip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip

Depending on which protocol you are using SIP vs H323 you may need some of the above.

Chris

[Nikolay Nikolaevich]

Thank you Chris.

Just one moment. As far as I understand dial peer trunk between both C2921 with CUCME will be SIP or H323 according to your config? And I should choose one of it. Am I right?

[Chris Deren]

The config I provided would allow for either, the protocol is driven by the dial-peer configuration, if you have "session protocol sipv2" under the dial-peer then it's SIP, if there is no such line then it's H.323.

[Tagir Temirgaliyev]

configure dial-peers from router to router and back

or share your config and I will do

[Nikolay Nikolaevich]

Thank you, for support.

Just want to do it by myself, its more interesting than someone else )).

Also I downloaded of very usefull manual here http://www.cisco.com/c/en/us/td/docs/ios/12_2/voice/configuration/guide/fvvfax_c/vvfpeers.pdf 

[Chris Deren · Accepted solution]

Great, let us know if there is anything else you need, otherwise please mark it as answered.