That fellow has more videos related to those two communicators. 

5 hours ago, MrHappy said:

 

 

 

phone lines are finished for alarm signaling.... you need to put your hand in your pocket & buy a proper alarm from a proper alarm company with proper signaling 

Problem is all the proper companies in the BN7 area are busy as, we keep putting our prices up and still getting more acceptances than we can deal with. Im booked up till December now.

 

OP James was referring to an alarm panel not landlines, analogue landlines will be obsolete by 2025 and so the choices are IP signaling and GSM. But as James says using signaling without a control panel though in theory will work its not a sensible way to go about it. 

4 hours ago, Cieska said:

That fellow has more videos related to those two communicators. 

 

lots of video's...

 

however I'm pretty sure he's never worked at a proper alarm co.

As H says may as well use his forum then. Do you want honest views from security professionals or some bloke with a YouTube channel. I'm assuming the former or you would be commenting on his channel and making him some cash on views vs being here.