Is Your Fire Alarm Monitoring
Dependent on a Phone Line?
Many monitored fire alarm systems still use Public Switched Telephone Network (PSTN) or Integrated Services Digital Network (ISDN) connections to communicate with Alarm Receiving Centres. If you’re unsure how your system communicates, contact your fire alarm provider today.
The PSTN network will be switched off on 31 January 2027, and businesses that fail to migrate may experience loss of monitoring or signalling capabilities.