I've CUCM 8.5.1 with IP IVR 8.5.1 (UCCE is not important in this problem) in our test environment.
In IP IVR System Parameters I have G729 as codec setting.
I've installed and configured Nuance TTS system; the TTS subsystem is correctly "In Service" state.
If I debug the IVR script, on the PlayPromt(TTS["this is a test"]) step, it raises the error:
com.cisco.audio.WrongAudioFormatException: Expected audio format tag: G729, found audio format tag: G711_ULAW
It seems that TTS cannot work with codec G729 and this is confirmed by Nuance; so, I need something that make transcode on the audio stream "on the fly"...
I tried to configure a transcoding resource on CUCM (either "standalone" or inside a MRGL/MRG) but it seems that CTI Port never call it...In RTMT I can see the Transcoding resource ever with 0 Active...
So I'am wordering if it is possible to use TTS on IP IVR configured with codec G729 and if yes, how.
does the MRGL of the CTI Port(s) include the Transcoder? Also, is the Transcoder accessible, I mean, no bandwidth limitation etc.
Also, can you please tell us more about the Transcoder itself? Does it kick in in a different situation (e.g. a phone calling a UCCX application, while the phone is restricted to use the G.729 codec only)?
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