[asterisk-users] IVR No sound on other provider

[Ron]

Hi All,

I have setup 2 trunks using 2 different voip providers using sip.

the first one i have no problem calling inbound then redirected to an 
IVR, i can hear the IVR.

the second one has issues, inbound works going to IVR as i can see it on 
the CLI, but i don't hear anything. i tried redirecting it to an 
extension not an IVR just to see if inbound really works, and it rings 
the extensions directly and i can here myself talking both ways. is the 
issue maybe incompatible audio format?

i am using freepbx, and i recorded the ivr using the IP phone (by 
dialing *77), my provider says they are only using codecs iLBC and 
g711a. is that the reason why i cant hear the ivr? where do i start 
checking it?

thank you

regards,

Ron