[asterisk-users] Dealing with 2 SIP providers

[Yuan LIU]

>From: Mike <list at virtutel.ca>
>Date: Fri, 11 May 2007 19:44:51 -0400
>
>Yeah ok.  That doesn't help.
>
>What I mean is I want a call to go out on ProviderA, UNLESS it's down and
>then go to ProviderB.

ChanIsAvail() is supposed to allow this.

Yuan Liu

>I want it to ring 30 seconds and then Hangup if nobody has answers.
>
>I DON'T want to dial both, only one or the other.
>
>Mike
>
>-----Original Message-----
>From: asterisk-users-bounces at lists.digium.com
>[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Yuan LIU
>Sent: Friday, May 11, 2007 17:03
>To: asterisk-users at lists.digium.com
>Subject: RE: [asterisk-users] Dealing with 2 SIP providers
>
> >From: Mike <list at virtutel.ca>
> >Date: Fri, 11 May 2007 11:06:35 -0400
> >
> >Hi,
> >
> >I have a question of using 2 SIP providers.  Let's say I have provider
> >A and provider B, and I would like my calls to go to A, and then B if A
> >wasn`t available
> >
> >Something like this would work:
> >exten => 1234,1,Dial(SIP/providerA)
> >exten => 1234,2,Dial(providerB)
> >exten => 1234,3,Hangup
> >
> >But what if I want to put in a delay? If I put 30 seconds on each of
> >them, I'll wait a total of 60.  I want to wait only 30 seconds before
> >the hang up.
>
>Like put 15 seconds on each?  It's quite hard to understand what exactly 
>the
>requirements are.
>
>Yuan Liu
>
> >Also, if ProviderA has a main server and a backup server, am I now
> >forced to have 3 Dial commands, or can I setup ProviderA with host and
> >backuphost in the same SIP entry?
> >
> >Mike