View Single Post
Old 12th Sep 2017, 5:30 pm   #19
Graham G3ZVT
Dekatron
 
Graham G3ZVT's Avatar
 
Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,676
Default Re: Interconnecting old telephones?

Quote:
Originally Posted by PsychMan View Post
For 2 phones, the following works very well and I found quite cheap and simple to implement:

http://www.instructables.com/id/Hack...hone-Intercom/

It works on the principle of lifting one hand set to cause the other to ring. The comments on that page should contain all the "UK" settings to get the correct ringing tones out of the VOIP adaptor.

I use the same for an outbuilding, and instead of using 1 VOIP adaptor, I modified the settings so each phone has a voip adaptor, and they call each other over Ethernet, as I have Ethernet to the outbuilding
Hi PsychMan,
Looks like we posted the same thing at 1613!

I hadn't seen that Instructable, but it's a simpler version of what I am doing.
A Hotline would not have been appropriate in my case, as each phone also can make and receive calls on its own VoIP account.
Each extension has to dial 11 to ring the other.

If you are interested, here is my dialplan with line-breaks and annotations after each | separator.
lower-case x are normal wildcard, upper-case X are to anonymize my stuff.


(<01:00441>x.| allow 01
<08:00448>x.| allow 08
<02:00442>x.| allow 02
<03:00443>x.| allow 03
<07:00447>x.| allow 07
<:0044161>[2-9]xxxxxxS0| allow Manchester numbers without dialling 0161
<0161:0044161>[2-9]xxxxxxS0| allow Manchester numbers using 0161
00x.| allow international
<11:XXXXX@sip.discountvoip.co.uk>| INTERCOM
<12:XXXXX@sip.voipfone.net>| SPEEDDIAL
<13:004477294XXXXX>| SPEEDDIAL
<14:00447728XXXXXX>| SPEEDDIAL
<15:0044151601XXXX>| SPEEDDIAL
<16:0044161884XXXX,495>| SPEEDDIAL + 3 digit DTMF
<17:2233435945@rentpbx.mundy.org>| SPEEDDIAL, "Lenny" ammusing anti-telemarketing robot URI
<18:music@iptel.org>) SPEEDDIAL, latter-day "disk of the day" URI

Graham.
G3ZVT

Last edited by Graham G3ZVT; 12th Sep 2017 at 5:47 pm.
Graham G3ZVT is offline