Patent ID: 7187768
Filing Date: 2007-03-06
Classification: H04M

Abstract:
1. A telephone line interface for directly connecting a RF headset with a central office telephone line having a tip and ring arrangement, said interface comprising: a ring detect circuit that is directly coupled to said tip and ring arrangement and activates a RF transceiver once said ring detect circuit detects a ringing condition on said tip and ring arrangement, and thereby notifying said RF headset of said ringing condition on said central office telephone line; a wire conversion circuit that separates transmit voice signals from receive voice signals and provides said separated voice signals to said RF transceiver; an electronic hook switch that is coupled to said tip and ring arrangement, said electronic hook switch goes off hook responsive to a signal from said RF headset; and a firmware module that receives a coded signal from said RF headset to activate said electronic hook switch to go off hook only when said central office telephone line is ringing or only when said central office telephone line is off hook, said firmware module also receives said receive voice signals and transmit voice signals and performs the digital processing necessary for communication with said RF headset.