7960 PLAR / Intercom

[andras]

Does anyone know if it's possible to use a 7960 (either SIP or SCCP) with Asterisk (specifically PIAF) to dial a number as soon as the handset is lifted? This type of functionality is known by several names - PLAR (Private Line Auto Ringdown), Batphone, Hoot and Holler.

What I'm basically trying to accomplish is the creation of, for all intents and purposes, an intercom for the lobby of a building. when the phone handset is lifted, I want to force the system to dial a specific extension.

Any ideas?

Thanks.

*** Update ***

Thanks for the tips guys.

I haven't tried the extensions_custom.conf method yet (next time I'm near the lab). In the meantime I did use Patricks method with the DIALTEMPLATE to see how that worked. It works well, except that I can't get the phone to dial on pickup, but have set it up to dial on any button press. I'll keep working on it, but in the meantime my kids have discovered that the phone on my desk calls me no matter what and have been enjoying the bat phone (possibly a little too much....)

 

[jmullinix]

I have done this but I don't remember what I did. In the Zap world you would use the directive immediate=yes.

For Sip, try making a special context in extensions_custom.conf called [from-batphone].

[from-batphone]
exten => s,1,goto(from-internal,1234,1)

I think this will dial extension 1234 when the phone handset is lifted, as long as there is nothing in the phone preventing it.

 

[patrick_elx]

You can probably create a dialplan in the cisco phone and play with the a delay of 0 second, and a rewrite of the number to the extension you wish.

create a file with

<DIALTEMPLATE>
<TEMPLATE MATCH=”*” TIMEOUT=”0” User=”Phone” Rewrite="yourEXT"/>
</DIALTEMPLATE>

and in your SEPmac.cnf file for your phone add the proper dial_template command pointing to this file.