I would be hesitant to extend an Ethernet connection for a SIP phone outside of 
the secured building perimeter without mitigating the potential security risks 
to the network.  Much better to use one of any number of existing products 
which use an analog phone line; and connect it back to an ATA located within 
the perimeter.

David

From: VoiceOps [mailto:[email protected]] On Behalf Of Oren 
Yehezkely
Sent: Monday, July 11, 2016 15:41
To: [email protected]
Cc: [email protected]
Subject: Re: [VoiceOps] SIP door intercom-phones


Carlos,

I have been using 2N for several years now. It is not cheap at all, but once 
you get it installed it works just great. It is a full IP phone, not just a 
speaker or an intercom. Mine also has video which you can watch on a video 
phone, such as GrandStream.
I am not sure if it has WiFi, but I am using it with POE so it has a wire 
anyways.
Some other great advantage is that it has an RFID sensor so the door can be 
opened with multiple unique cards or keyfobs.
I think that you can also get it today with Bluetooth or NFC, which will make 
it even more convenient.

I would recommend it whole heatedly, and I am not affiliated with 2N.

Good luck!
On Jul 11, 2016 5:51 PM, <[email protected]<mailto:[email protected]>> wrote:
FWIW, I had the DoorBellFon 
<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.mgraves.org_2011_10_an-2Danalog-2Dphone-2Dfor-2Dour-2Dfront-2Dgate-2Ddone-2Ddeal_&d=DQMFaQ&c=N13-TaG7c-EYAiUNohBk74oLRjUiBTwVm-KSnr4bPSc&r=VcRLyVxkyGds34uxiPM944HQvaWq-nynyZXfNpSfhOs&m=aBs-gW6LaUoPzA5rmG8jb6witfvXmQata-mtiVXgElg&s=oV_U9GGni2FwnI_Cb5bzLmSHXwy4YYcrjEd69qdL7wE&e=>
 for a while. At the time I had it connected to the analog jack of a Gigaset 
SIP/DECT cordless phone.

It was dreadful. Lousy audio quality. Tended to oscillate. It had a difficult 
time getting loud enough to be heard over the ambience at our front gate.

I wrote it off as a false economy and replaced it with an Algo Solutions 
8028<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.mgraves.org_2015_05_review-2Dalgo-2Dcommunications-2D8028-2Dsip-2Ddoor-2Dphone_&d=DQMFaQ&c=N13-TaG7c-EYAiUNohBk74oLRjUiBTwVm-KSnr4bPSc&r=VcRLyVxkyGds34uxiPM944HQvaWq-nynyZXfNpSfhOs&m=aBs-gW6LaUoPzA5rmG8jb6witfvXmQata-mtiVXgElg&s=6Tzp9Q1rwi2LelG03f6nfBDB6hiOWqhEB5t9dYrCAlg&e=>.

Michael

--------- Original Message ---------
Subject: Re: [VoiceOps] SIP door intercom-phones
From: "Jay Taylor" <[email protected]<mailto:[email protected]>>
Date: 7/11/16 4:39 pm
To: "'Carlos Alvarez'" <[email protected]<mailto:[email protected]>>, 
[email protected]<mailto:[email protected]>
Years ago my wife’s parents (the Outlaws) wanted something simple like this and 
I found this:

http://www.doorbellfon.com/homephone.htm<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.doorbellfon.com_homephone.htm&d=DQMFaQ&c=N13-TaG7c-EYAiUNohBk74oLRjUiBTwVm-KSnr4bPSc&r=VcRLyVxkyGds34uxiPM944HQvaWq-nynyZXfNpSfhOs&m=aBs-gW6LaUoPzA5rmG8jb6witfvXmQata-mtiVXgElg&s=SjZM8nL_BGEjUR7Hu91A9UfKCi3g5LmPFhuGkkA0liE&e=>

The “DoorBell Fon” was what we used for the project.

Requirements:

Analog phone line, can be used by any phone in the house, two way audio, use 
existing doorbell wire.

What this device does is insert itself between the demarc and the phones in the 
house.  If you are on the phone it acts like a call waiting service to let you 
know someone is at the door.  The reverse is also true,  If you are talking to 
someone at the door and a phone call comes in, you will be notified that the 
phone is ringing.

I believe you can set the ring so that you can tell if it’s a phone call or the 
door (double ring for door).  There is also the ability to activate a relay for 
a door opener if necessary.

You could very easily hook this to an ATA and connect it to a voip system.

When I installed this some 10 years ago, it cost about $85.00 wholesale.  It’s 
still running and they still love it.  You can still get parts so if something 
fails, just order the new part and you are good to go.  I’m seeing current 
retail for this item in the $150 range or less.

http://www.multiconnects.com/doorbell-fon-dp28it<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.multiconnects.com_doorbell-2Dfon-2Ddp28it&d=DQMFaQ&c=N13-TaG7c-EYAiUNohBk74oLRjUiBTwVm-KSnr4bPSc&r=VcRLyVxkyGds34uxiPM944HQvaWq-nynyZXfNpSfhOs&m=aBs-gW6LaUoPzA5rmG8jb6witfvXmQata-mtiVXgElg&s=tsrfXYNmLPevyAbGs4a5Cqp9eFk2YzmIAyUwomAuuiA&e=>
 This kit is only $130.

For the money and easy install factor, this was an absolute no brainer as the 
right thing to use.

The electronics look very much like something from “Viking Electronics” if 
you’ve used their products.

Jay
(Not affiliated with these companies in any way, just like their product.)

From: VoiceOps 
[mailto:[email protected]<mailto:[email protected]>] On 
Behalf Of Carlos Alvarez
Sent: Monday, July 11, 2016 2:18 PM
To: [email protected]<mailto:[email protected]>
Subject: [VoiceOps] SIP door intercom-phones

I need to deploy a few outdoor-rated speakerphones for a customer, to serve in 
place of the old intercom systems.  The ONLY thing they need to do is dial a 
single pre-set number on our system when a button is pressed.  So really, just 
looking for an outdoor speaker phone with a "dial from memory" button.

Does anyone have one they really like?  802.11af would be a nice bonus, but not 
absolutely required.

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