[Asterisk-Users] Outgoing calls, X100P

[Soner Tari]

> I am in Turkey. I imagine this is due to incorrect zone information, but I 
> can't seem to be able to find the correct values for Turkey. I tried 
> guessing them with no luck.

DTMF tones in Turkey are the same as the standards everywhere. The other 
signalling tones are different (such as dial tone), but irrelevant in your 
case. Iain's suggestion may be what you need.
Soner