[Asterisk-Users] Fail over to Pri on VoIP connection failure

[Damon Estep]

Andrew,

Thanks for this - I have also been looking for a way to "fail over"
calls to a second SIP path, but;

In the event that the first attempt DOES NOT RESPOND (is down) there has
to be a timeout value to go to the next priority, correct? Otherwise the
channels just sits silent waiting for a response.

I think your macro assumes that you got a response from nufone, but what
if they were dead in the water?

Have I missed something?

Is there a way to modify the relevant SIP timer so if the INVITE is not
ack'd in a specific period of time then the next priority is executed?

Damon

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Andrew Kohlsmith
> Sent: Friday, January 27, 2006 1:12 PM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] Fail over to Pri on VoIP connection
failure
> 
> On Thursday 26 January 2006 10:52, Cavanna, Richard wrote:
> > I am trying to tweak my dial plan and I am running into a problem.
> > Sometimes my VoIP out bound calls do not complete on overseas
calls(busy
> > or just a hang-up).  Is there a way in the dial plan to
automatically
> > dial out of my PRI when something like this happens.  Either by time
> > limit by a failure event?
> 
> ; call $ARG1 through nufone, failing over to the PRI.
> [macro-nufone-dial]
> exten => s,1,Dial(SIP/${ARG1}@nufone,,go)
> exten => s,n,NoOp(NUFONE: HANGUPCAUSE is ${HANGUPCAUSE} and DIALSTATUS
is
> ${DIALSTATUS})
> exten => s,n,Goto(dial-${DIALSTATUS},1)
> 
> exten => dial-CANCEL,1,Hangup
> exten => dial-ANSWER,1,Hangup
> exten => dial-NOANSWER,1,Hangup
> exten => dial-BUSY,1,Busy
> exten => dial-CONGESTION,1,Congestion
> exten => dial-CHANUNAVAIL,1,Macro(pri-dial,${ARG1},${ARG2})
> 
> It really is as simple as that.  :-)
> 
> -A.
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