cucm sip trunk between two callmanager calls not work

[ciscoceci]

Hello,

I have configured a sip trunk betwen two CUCM (10.5 & 8.5), i need that extensions from one of them go out through PSTN installed in the other one.

When i try make call i see a reor in display, i see in RTMT that call goes through sip trunk connected betwen two cucm but the call doesn´t go out PSTN. It seems a problem with permission..

could some one help me??

thanks Anna

[ciscoceci · Accepted solution]

Hello,

just i found solution!! we haven´t correct CSS configured in SIP trunk that connected both CUCM.

Regards