Comfort  Automation/ Security System Forums Home
Home Search search Menu menu Not logged in - Login | Register

BT Changing telephone line to digital
 Moderated by: admin
 New Topic   Reply   Printer Friendly 
 Rate Topic 
AuthorPost
 Posted: Tuesday Jan 18th, 2022 08:30 am
   PM  Quote  Reply 
1st Post
raygregg114
Member
 

Joined: Tuesday May 4th, 2010
Location:  
Posts: 104
Status: 
Offline

  back to top

Hi,Currently my comfort alarm has a direct connection to my home telephone line.We have just been informed that BT in the UK is changing this line to digital.How will this affect my alarm or is there something i can add to the alarm to make it digital computableThanks for your help..



 Posted: Tuesday Jan 18th, 2022 11:05 am
   PM  Quote  Reply 
2nd Post
slychiu
Administrator


Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5498
Status: 
Offline

  back to top

When they change  the line to Digital, BT should provide an analog port which can connect to analog phones, Otherwise all the phones will not work. 

You can connect Comfort TEL in to the analog port and connect the house phones to TEL OUT.  Comfort should still be able to dial out.

However with these digital lines, the DTMF detection may not work as well as before, because these digiatal lines introduce more delays, as they are meant for voice only..Similarly dialing to Central Monitoring stations (alarm Receiving stations) may not work for the same reason. 

If there is a problem then I suggest getting a UCM/GSM module which will work on the mobile 3G network. Then you will not need the phone line



 Posted: Wednesday Jan 19th, 2022 11:47 am
   PM  Quote  Reply 
3rd Post
Ian
Member
 

Joined: Saturday Aug 19th, 2006
Location: United Kingdom
Posts: 249
Status: 
Offline

  back to top

I may have problems, the 3G signal is very poor where I am :-(



 Posted: Thursday Jan 20th, 2022 12:35 am
   PM  Quote  Reply 
4th Post
slychiu
Administrator


Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5498
Status: 
Offline

  back to top

What about 4G? There is a UCM/4G but it is more expensive



 Posted: Thursday Jan 20th, 2022 11:34 am
   PM  Quote  Reply 
5th Post
Ian
Member
 

Joined: Saturday Aug 19th, 2006
Location: United Kingdom
Posts: 249
Status: 
Offline

  back to top

Very poor mobile signal for 2, 3, 4 and 5 G. I live in a valley.



 Posted: Sunday Jan 23rd, 2022 05:35 am
   PM  Quote  Reply 
6th Post
slychiu
Administrator


Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5498
Status: 
Offline

  back to top

ill have to try the digital line once they switch over then



 Posted: Friday Dec 8th, 2023 03:11 pm
   PM  Quote  Reply 
7th Post
ptdoyle
Member
 

Joined: Tuesday Nov 15th, 2022
Location: United Kingdom
Posts: 4
Status: 
Offline

  back to top

Hi Ian,
I was wondering how you got on with BT's switch to Digital Voice? Like you, I live in an area where mobile signal is really bad, and 4G not reliably available.
I have to decide whether to keep my landline and if Comfort still worked with BT Digital Voice, I would keep it just to have a reliable connection to the alarm system.
What was your experience?
Thanks,Paul



 Posted: Friday Dec 8th, 2023 03:31 pm
   PM  Quote  Reply 
8th Post
Ian
Member
 

Joined: Saturday Aug 19th, 2006
Location: United Kingdom
Posts: 249
Status: 
Offline

  back to top

It hasn't happened to me yet!



 Posted: Saturday Dec 9th, 2023 01:20 am
   PM  Quote  Reply 
9th Post
slychiu
Administrator


Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5498
Status: 
Offline

  back to top

With BT Digital Voice, you can plug in your old phone into the Hub. I would expect that Comfort can make outgoing calls, and you can call to comfort. I dont know that the DTMF tones would be recognised by Comfort due to the delays that may be introduced by the digital service



 Current time is 01:26 am
Top




UltraBB 1.172 Copyright © 2007-2014 Data 1 Systems