No ringback from cisco ip phones to alcatel Phones
I have a CUCM 7.1.3 integrated with a Alcatel OXO PBX and when a try to place a call from cisco IP-Phones registered on CUCM to phones on PBX, I have no ringback,but when a place a call from cisco IP-Phones registered on CUCM to PSTN using PBX as it has a PRI line to the local PSTN, I dont have that issue.
The voice gateway connects to PBX using a PRI(E1) running MGCP and QSIG.
interface Serial 3/1:15 no ip address encapsulation hdlc isdn switch-type primary-qsig isdn timer T310 120000 isdn protocol-emulate network isdn incoming-voice voice isdn bind-l3 ccm-manager no cdp enable
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