If Telephone jack is with the Fire Alarm system, does it mean it includes voice evacuation system?

Question

If Telephone jack is with the Fire Alarm system, does it mean it includes voice evacuation system?

Answer 1

a telephone interface on an alarm system is for it to dial out to a remote monitor station. the monitor station then contacts the fire/police/owner or other authorities to notify that an alarm has been tripped. such interfaces may or may not have voice capability, most just use modem tones to communicate with a computer.