[Asterisk-Users] Picking a channel (FXO port or SIP) for outbound calls

[Andrew Kohlsmith]

> So the generized question is how to do across channel type
> fail overs?

From a post to this very thread just a few hours ago:

> exten => _9.,1,ChanIsAvail(Zap/1&Zap/2)
> exten => _9.,2,Dial(${AVAILCHAN})
> exten => _9.,102,NoOp
> exten => _9.,103,Congestion 

Now in your case, you'd say 

exten => _9.,1,ChanIsAvail(Zap/g1&SIP/whatever)

(i.e. check for an available Zap channel in group 1, and failing that, use 
SIP/whatever.)

Offhand, has anyone gotten '.' to work worth a shit with FXS devices?  I 
always get a match after the first digit (i.e. there is no digit timeout, 
and the DigitTimeout command isn't quite what I'm looking for.

Regards,
Andrew