The InterTalk™ RTI (Radio Telephone Interconnect) is an advanced alarm interface which enables radio users to send calls for assistance and emergencies which are recognized and handled by the RTI via a sophisticated telephone and radio communications facility. The InterTalk™ RTI is also used to provide base station interfaces via an inexpensive telephone lines or via a mixture of radio bearer circuits and telephone lines. InterTalk™ RTI can also be used for alarm recognition and remote control where telephone and/or radio access is available.