CUCM no ringback - H323 Alcatel GW

[Leonardo Lacerda]

Hi guys!! 

I have a CUCM 10.5.2 configured on my customer, they have a integration via H323 with gateway Alcatel system.

In CUCM I have gateway H323 configuration to Alcatel.

Happens that a call from IP phones Cisco to phones on Alcatel don't have ringback, the call complete and de audio works in both directions, but IP phone Cisco don't received ringback. 

I have MTP checked, inbound faststart, outbound faststart with codec G729 checked. 

I collect from RTMT a SDL trace log from a call that does't have ringback. 

Any one already see somethig like that?

[Muhammed Anees]

Have you identified the problem?

[Muhammed Anees]

I was facing the same issue and it started working after checking "Enable Outbound FastStart" in the H323 trunk to Alcatel

Regards,

Anees