asterisk users - Mar 2008 - Shared Extension

I am working on a project that requires shared extension.  Where shared line
looks at the status of a line/trunk, shared extension would look at a series of
channels as the same "extension".

The users would like to add destination channels on the fly, to provide roaming
extensions, but maintaining fixed channels as well.

If a call comes in on an extension, the system needs to honor the fact that
channel 1 is busy, therefore, the extension is busy.  Keep in mind that the
channel could be anything including SIP outbound trunk channels (read cell phone
or hotel room).

The Dial command does provide a nice multi-channel dialer, especially with the
"r" option, however, if one of the lines is busy, the system will keep
ringing the other lines until timeout or answer (read voice mail).

So I am contemplating adding a feature to the dial command, that would make any
channel busy, cause the initial Dial to come back as busy.  Kind of a force the
state flag.

Before I brake into code, does anyone have any other ideas?

This would also help with phones like Grandstream, where you have 4 accounts to
configure, and would like to have all 4 SIP accounts act as 1 extension.

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


On Mon, Mar 10, 2008 at 11:00 AM, Tony Plack <Tony at plack.net>
wrote:
> I am working on a project that requires shared extension.  Where shared
line looks at the status of a line/trunk, shared extension would look at a
series of channels as the same "extension".
>
>  The users would like to add destination channels on the fly, to provide
roaming extensions, but maintaining fixed channels as well.
>
>  If a call comes in on an extension, the system needs to honor the fact
that channel 1 is busy, therefore, the extension is busy.  Keep in mind that the
channel could be anything including SIP outbound trunk channels (read cell phone
or hotel room).
>
>  The Dial command does provide a nice multi-channel dialer, especially with
the "r" option, however, if one of the lines is busy, the system will
keep ringing the other lines until timeout or answer (read voice mail).
>
>  So I am contemplating adding a feature to the dial command, that would
make any channel busy, cause the initial Dial to come back as busy.  Kind of a
force the state flag.
>
>  Before I brake into code, does anyone have any other ideas?
>
>  This would also help with phones like Grandstream, where you have 4
accounts to configure, and would like to have all 4 SIP accounts act as 1
extension.
>
>  Tony Plack
>
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-- 
Raj Jain

mailto:rj2807 at gmail dot com
sip:rjain at iptel dot org