[cisco-voip] Prompts Played on IP Call Legs

[Francisco]

I'm developing a Prepaid Card script in TCL IVR, router Cisco 3600, AAA 
under OpenRadius.
I have a trouble playing prompts on IP Call Legs, according the "Configuring 
TCL IVR Applications" document;

"...

TCL IVR Prompts Played on IP Call Legs
TCL IVR Version 2.0 scripts can be configured for incoming plain old 
telephone service (POTS) or VoIP call legs to play announcements to the user 
or collect user input (digits). With TCL IVR Version 2.0 the prompts can be 
triggered from both the PSTN side of the call leg and the IP side of the 
call leg. This feature enables the audio files (or prompts) to be played out 
over the IP network.

TCL IVR scripts played toward a VoIP call leg are subject to the following 
conditions:

.G.711 mu-law encoding must be used when prompts are played.

....."

the trouble is not actually when playing media, other than when the POTS 
side talk, the IP side can t hear any sound, but the POTS side can.
I set the codecs at g711ulaw, but the problem persist.
The trunk ( POTS side ) is encoding using g711alaw.

Aditionally if I set the gateway codec to g711alaw, the IP side didnt hear 
the prompts but the communication between both sides is successful.


any comments?

thanks in advance!