JT
I've looked around and found previous discussion about this, but so far I have not seen any answers that really solve this problem.
I'd like to integrate an intercom system into Asterisk so that users could dial an extension, the phone on the other end would emit a beep, and then the speakerphone would activate letting two people have a conversation without the person at the extension picking up the phone. This is a huge benefit for an office/warehouse environment.
I know that this can be programmed with certain Cisco phones (set to autoanswer), but my problem is that the phones that I want to do this with are down in our warehouse and I think the Cisco phones would be stolen quickly. I've also thought about a writing a software solution with microphone and a set of speakers, but, again, the computers would probably end up getting stolen.
A $20 analog speaker phone would work great if I could wire the speaker phone to pick up the line automatically on ring and then hang up the line on disconnect. Anyone know how to change the wiring to get it to work?
David Schumann <<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]> Filter Products Company P.O. Box 13068 Richmond, VA 23225 804-231-4646, phone 804-233-3912, fax <http://fpcfilters.com>http://fpcfilters.com
Date: Wed, 26 Nov 2003 22:43:27 -0500 To: [EMAIL PROTECTED] From: John Todd <[EMAIL PROTECTED]> Subject: Re: [Asterisk-Users] door phone
Hi,
Anyone know anything about Asterisk's support for door phones? Receiving the call from the door intercom system, opening the door, etc?
Any hardware recommendations? I understand that the equipment we have now is Panasonic proprietary and came with the currently deployed Panasonic TD12-32 pbx.
We intend to deploy Asterisk in a 72 extensions + 16 trunks in a while, so any info will be great.
thanks
While this isn't an Asterisk question, I guess, I find it hard not to comment on a particularly excellent piece of equipment which which I've worked previously:
http://www.talkaphone.com/products.cfm?prodid=168
Can be ordered from Grainger (at least, two years ago it could) here in North America under part number 4RR12 "Emergency Access Phone" for $623.50. I'm sure you can find it elsewhere, too.
Built like tanks, designed for outdoor implementation. I _highly_ recommend this device. ADA-compliant with braille and raised letters (must be mounted within wheelchair height to be compliant.) They can dial a specific sequence of numbers upon button press, and they can take inbound calls, or even auto-dial when someone is screaming at it with the right module option. Also includes a set of relays that can be activated via DTMF. All analog, will plug right into an FXS port. I'm sure a clever hacker could find some NEMA-rated outdoor boxes into which an ATA-186, WiFi device, power regulator, and battery could be built, and a solar panel mounted on the top for a campus-wide or for large park areas with no wiring...
To address the other point made on this thread: the DTMF sequences to open the door are only valid coming from the "far end" of the call.
JT
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