Calls between 2 call manager express

[cigalahgroup]

Hello,

        I have 2 sites namely SITE A and SITE B both sites have call manager express installed. SITE A has the dial plan 
7xxx and SITE B has 6XXX and  I want SITE A to call SITE B vice versa using there local extensions. I mean 7100 should call 6100. Since I am new please help.

Both the sites are pingable they are connected using MPLS connection.

[Chris Deren · Accepted solution]

All you need to do is build dial-peers on each side to point to the other side, for example on side A:

dial-peer voice 1 voip
 destination-pattern 6...
 progress_ind setup enable 3
 session target ipv4:<IP address of site B>
 voice-class codec 1  
 voice-class h323 1
 dtmf-relay h245-alphanumeric
 ip qos dscp cs3 signaling
 no vad

and similarly on the other side, you will also need the following change:

voice service voip
 allow-connections h323 to h323
 

Chris

[cigalahgroup]

I already have this in place from my previous network engineer 

dial-peer voice 6000 voip
 description ** Local Extension **
 destination-pattern 6...
 session target ipv4:130.2.1.1
 incoming called-number 7[12345]..
 codec g729br8

shall I change it as you posted above and try it ? 

[Chris Deren]

This is fine, but remove the codec command, and issue the following debugs on both sides and then make a call from one side to another:

"debug voice dial peer"

"debug voip ccapi inout"

Chris

[cigalahgroup]

Thanks It worked