Raj,
I would say you understand exactly. It is kind of a SLA, but not.
SLA does great with a inbound trunk line and multiple extensions, but even in
SLA, if one extension is busy, the others ring.
There is no way to tell asterisk that if it gets a busy on one of the channels,
that the extension is busy, period.
The terminology to say that multiple extensions appear as a single extension is
not correct either. To say that you would have to define an extension in the
system and that each of these extension numbers is pooled in a Local type dial
command to the single extension. So because that terminology is not adequate,
I am using one extension to multiple channels.
I am trying to create a single extension to multiple channels (lines) {exten =>
5000,1,Dial(SIP\1234&SIP\phone&Local\12225551212)} but respecting busy on any
channel is busy on the extension. Almost the reverse of SLA, but with all the
behavior of a single extension to a single channel {exten =>
5000,1,Dial(SIP\1234)}
Thanks for working with me to clarify.
Tony Plack
> I don't quite understand the use case, but it sounds like you may
> be trying to do shared line appearances
> (http://asterisk.org/node/48342). You seem to be alluding that you
> want multiple extensions to share the state of a single extension.
> If that is the case, then SLA isn't quite that. Also, Asterisk SLA
> doesn't support a notion of call appearance where a single
> extension can receive multiple calls.
>
> --
> Raj
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