Softmodems Bell103

GAO’s Bell 103 modem software implements the Bell 103 data set for up to 300bps full duplex data communication. This modem operates on two-wire systems using two distinct frequency bands for frequency modulation. This is a split channel modem, like the ITU-T V.21, which uses different frequencies. GAO’s Bell 103 softmodem can either originate or answer calls and can be used with a direct connection or by acoustic coupler.