[Asterisk-Users] SIP phone as intercom

[Sean Adams]

Wow! Thanks John for the detailed information.
This is such an awesome system... and great support here, too.

On Dec 31, 2003, at 12:07 AM, John Baker wrote:

> Hello, all
>
> Sorry to correct you on this Matt, but I am currently doing this with
> the Polycom 600 phones.  You need the latest version of both the SIP
> software and bootrom to do it, (and that stuff ain't easy to get) but 
> it
> is workable.
>
> The latest version of software provides for distinctive ring tones just
> like the Cisco 7960's have.  It also provides for auto answer.  It's
> kind of tricky to do, but you can make your phones auto answer by
> setting the Alert-Info variable in asterisk and messing with the xml
> configuration files, sip.cfg and ipmid.cfg.
>
> In the sip.cfg file, look for the line with these variables:
>
> <alertInfo voIpProt.SIP.alertinfo.1.value="Sales"
> voIpProt.SIP.alertInfo.1.class="8"...>
>
> In this real-world example, whenever I set ALERT_INFO to "Sales" in
> Asterisk, the Polycom matches on that word and calls up class 8 in
> ipmid.cfg.
>
> In ipmid.cfg, my class 8 line looks like this:
>
> <SALES se.rt.8.name="Sales" se.rt.8.type="ring" se.rt.8.ringer="11"
> se.rt.8.callWait="6" se.rt.8.mod="0">
>
> se.rt.8.type="ring" tells the Polycom phone which type of ring to use -
> which in this case is a regular ring and se.rt.8.ringer="11" tells the
> phone to ring with ringtone 11 with is the Triplet.
>
> I use this one for signaling a new incoming sales call to one of my
> three sales guys.  The secretary transfers it to the sales department
> and their lines ring with the Triplet.  I feel like Pavlov whenever I
> hear it.
>
> The other ring types are visual, answer and ring-answer.  The one you
> want is ring-answer.
>
> Here's how I do it:  Again in sip.cfg (actually part of the same line
> listed above)
>
> ...voIpProt.SIP.alertinfo.2.value="Ring Answer"
> voIpProt.SIP.alertInfo.2.class="4"...>
>
> and in ipmid.cfg (I just modified one of the existing ones to give me a
> High Double Trill ringtone)
>
> <RING_ANSWER se.rt.4.name="Ring Answer" se.rt.4.type="ring-answer"
> se.rt.4.timeout="1000"... se.rt.4.ringer="7"...>
>
> The se.rt.4.timeout="1000" tells the Polycom to ring for 1000
> milliseconds (one second) and then answer.
>
> I call it in Asterisk by setting the ALERT_INFO variable to "Ring
> Answer" whenever anybody pushes 8 plus the extension.  It rings in to
> the extension and voila, I'm on speaker!
>
> By the way, for all you BOFH out there, you could actually use this
> feature as a somewhat surreptitious eavesdropping device by using a
> silent ring and a visual type.  The phone would answer without any
> indication except on the console.  I haven't tried this myself and if
> you do this, I don't want to know about it...unless I'm in your office
> at the time.
>
> Good Luck!  I was going to put this in the Wiki myself, but maybe
> somebody will give me a late Christmas present.
>
> --John Baker
>
> On Tue, 2003-12-30 at 19:08, mattf wrote:
>> Hello,
>>
>> It's all dependant upon the firmware of the phone(nothing to do with 
>> the PBX
>> or SIP currently). The documentation of the Polycom VOIP phones shows 
>> no way
>> of doing this currently but it is really just a matter of Polycom 
>> adding
>> this feature to their firmware in the future which we are pushing for.
>> People have gotten this to work with Cisco and Snom phones.
>>
>> MATT---
>>
>> -----Original Message-----
>> From: Sean Adams [mailto:sadams at slimdevices.com]
>> Sent: Tuesday, December 30, 2003 6:21 PM
>> To: asterisk-users at lists.digium.com
>> Subject: [Asterisk-Users] SIP phone as intercom
>>
>>
>>
>> (new asterisk user - currently setting up Polycom IP600 phones)
>>
>> Does anyone know if it's possible to make a sip phone instantly pick 
>> up
>> on speakerphone when a particular call comes in? Eg so that you can
>> quickly bother someone across the office without making them reach for
>> their phone?
>>
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>
>
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