The Vocia Telephone Paging Interface 1 (POTS-1) allows a direct connection of two or four analog telephone service (POTS) lines or POTS-based PBX telephone lines. The interface permits live, real-time paging using any page code within the Vocia system. When calling into a POTS line, a number of software-configurable voice-prompt functions are available including page code selection, zone status indication, and page-now indication. A DTMF sequence of tones can also be programmed in the software to be associated with a Vocia control input event. The POTS-1 supports Vocia regular and emergency messaging, and will also support page stacking and store-and-forward functionality.