[Asterisk-Users] 180 Ringing? (BUG?)

[Mirko Marghitola]

Voilà.
Now i know where is the problem.
I use 2 ISDN channels with a with a fritz! card and the junghanns capi 
drivers.
The problem appears with SIP to ISDN calls.

The SIP 180 ringing message doesn't appear because the ISDN PBX sends 
the "ALERT" message in-band (channel B), and not in the D channel. So 
Asterisk doesn't know when the ISDN channel is ringing.
With my configuration Asterisk can not understand the in-band signalling 
for the capi channels, is it possible to use "in-band" signallisation 
for capi channels?

Mirko