BT21CN—digital network
Many of you are probably aware of the impending changes to the British Telecom telephone network and their plans to change systems to the 21st Century Network (BT21CN). This change is due to happen over the next few years and when complete, will mean that some of the older warden call equipment is likely not to
work. We wanted to remind you that this change will happen and that you will need to check compatibility. More information can be found from the link below, or from your suppliers. http://www.btplc.com/21cn/