[Asterisk-Users] RE: how to manage Digium TDM04B outgoing calls

[Asterisk List]

On Wed, 19 Jan 2005 15:55:10 -0700, Jason Kawakami
<jkkawakami at optellabs.com> wrote:
> 
> 
> -----Original Message-----
> 
> My question
> concern outgoing calls. How can I configure my extensions.conf to get a
> PSTN line on my TDM04B card in the following order : first trying on the
> channel 4 then if 4 is busy then switch to 3 if 3 is busy then switch to
> 2 and if 2 is busy then say there's no more line available. I don't want
> to dial on the first channel as it's my main number and all calls are
> received by that channel if the line isn't busy. I don't have to manage
> it for incoming calls (it can't be done anyway) as it's done not on my
> side but on the side of my provider (with the callforward on busy thing)
> but for outgoing calls the asterisk server must manage it.
> 
> -put all of the zap channels in a group and specify that you want the
> outgoing calls to choose from the back of the group.  Look on the wiki for
> the g and G options to the Dial()application.

The above is good suggestion.  If you do not wish any calls to be
placed from channel 1, you can put channel 1 in a group and 2-4 in
another group.  The two groups can have the same context so that
incoming calls are treated the same way.  In your dial plan, you can
Dial() outgoing calls using the second group only.

--JJL44