Patent ID: 7082123
Filing Date: 2006-07-25
Classification: H04M

Abstract:
1. A redial system for a VoIP modem, comprising: a subscriber line interface circuit (SLIC), for interfacing analog telephone signals from a telephone set to the VoIP modem, and for generating, when receiving a dialed telephone number which matches a predetermined telephone number, redial signals to a public switched telephone network (PSTN); a first relay for selectively connecting the telephone set with the PSTN or connecting the telephone set with the SLIC; a dummy load; a second relay connected between the PSTN and the dummy load for selectively establishing or de-establishing a connection between the PSTN and the dummy load; a third relay connected between the first relay and the SLIC for selectively establishing or de-establishing a connection between the first relay and the SLIC; and a control means for controlling the second and third relays to establish the connection between the PSTN and the dummy load and de-establish the connection between the first relay and the SLIC during the generation of the redial signals.