[Asterisk-Users] Re: chan_capi, chan_misdn and chan_modem

[Armin Schindler]

On Fri, 13 May 2005, Elmar Haneke wrote:
> > Then I hope to receive some reports on what is buggy/not working,
> > wishlist
> > and hopefully also some reports on what works well.
> 
> There are at least two anoying bugs:
> 
> 1. The Busy-Applicatzion does not work, there seems to be no was to singnal
> Busy to the caller is no SIP-Phone is ready to answer the call.
> 
> 2. Dial-Application does not really detect the reason for Failings. As an
> Example you should have a look at the LCR script available at
> Telefonsparbuch.de: The script trys to do some Fallback but it does not work
> with chan_capi.

Thanks, for pointing out such issues. But can you please be more specific 
and give an example on how to reproduce it?

For example, if you use an Point-to-Multipoint ISDN connection (not 
'Anlagenanschluss'), then you won't get an immediate 'BUSY' on SIP 
Busy/Congestion.
It's not possible to signal the caller 'Busy' or 'Reject', because there is 
a timeout on the ISDN-Bus for ANY OTHER device which may answer the call.
Only on timeout, the Busy is signaled.

So what type of connection and environment do you use?

Armin