[Asterisk-Users] Asterisk, Tenovis, Fritz, capi problem

[Armin Schindler]

On Thu, 4 Aug 2005, Joseph Rothstein wrote:
> Background: 
> 
> We are currently implementing an Asterisk based solution for a customer to
> enable teleworker phone access. We have connected an Asterisk box running
> SUSE 9.3 with an AVM Fritz PCI ISDN card installed running CAPI to a Tenovis
> box. Softphones using SIP (referred to as SIP user) have been configured and
> can register no problem with Asterisk. The SIP users can call each other
> with no problem.
> 
> Problem: 
> Incoming calls to the SIP users work fine, but outgoing calls do not.
> Outgoing calls ring the called number no problem (dialing using chan_capi
> works fine), but when the called number answers, Asterisk does not receive
> any notification that the call has been answered, and hence the softphone
> keeps ringing. If the hash (#) is pressed on the called phone, the call is
> then shown as answered, Asterisk sees it as answered, but there is only
> oneway voice. The called party can hear the SIP user, but the SIP user
> cannot hear the called party. Asterisk also does not get notification that
> the call was terminated if the called party disconnects the call.
> 
> Attempted Solutions:
> We believe this to be a DTMF problem, but are not sure. We have tried
> changing the DTMF in the sip.conf and capi.conf files, but nothing seems to
> solve the problem.

What versions of Asterisk/chan_capi do you use ?

Armin