[asterisk-users] SIP provider registration attempts

[Philipp von Klitzing]

Hi!

> > Look at qualify= for sip.conf, and consider to extend your
> > diaplan for a 
> > better routing decision with a snippet like this
> 
> Actually, I noticed that setting qualify= alone solves my issue. I
> apparently don't require extra dialplan logic because if the peer is
> "unreachable" (according to "qualify state") then I guess that Asterisk's
> Dial() immediately fails.

That's right, but a) you might want to make a routing decision already 
before starting Dial() for a smoother handling of calls, and b) the extra 
code helps to differentiate the case when qualify says all is fine, yet 
the peer still cannot be reached for whatever reason. Asterisk will 
translate the SIP error code into a HANGUPCAUSE, and with that 
translation you loose a lot of information.

Philipp