[c-nsp] ISDN to Mauritius / change bearer to speech on outgoing calls

[Michael Markstaller]

Hi,

I'm dealing with a strange problem:
I have a c1712 sitting in Mauritius and cannot call it from Germany with my dialout-box.
The error I get on the dialout-box is "0x81C1 - Bearer capability not implemented"
"deb isdn q931" on the box in mauritius says nothing..

BUT, when using a normal phone with ISDN bearer cap "speech", the call gets through, I can see it there in the debug and when setting "isdn incoming-voice data" on the BRI interface the call also gets answered.

Now, I expect there to be some problem with digital ISDN-calls from Germany to Mauritius or vice-versa and therefore thought of changing the bearer-cap on outgoing calls to speech then; with "isdn incoming-voice data" on the called router it should work (?) but:

how do I change the dialout-router to use bearer "speech" instead of digital

Any hint would be appreciated, I found nothing by googling so far..
(ok, it's also insane to set the "wrong" bearer-cap but I hope it helps in this case)

Michael


BTW: if this works, another interesting thing might be, this would probably help to "workaround" a well-known flat-tariff in Germany which allows only voicecalls by policy ;)