Control method of communication terminal the communication...

Cordless telephone apparatus

Credit card which generates a DTMF tone

CRT mass-distribution, preprogrammed automatic dialing mechanism

Current source and off-hook detector

Custom telephone

Cycle-modulating type of dual-tone multifrequency generator

Data communication apparatus

Data communication apparatus including volatile and non-volatile

Data communication method and apparatus including volatile and n

Data storage apparatus

Data transmission apparatus having abbreviated dialing function

Deformable membrane keypad assembly for public telephones

Determining the manner in which the wires connecting to a base s

Device for indicating a call to an absent subscriber

Device for setting and tone dialing a single telephone number

Dial information storing and redialing method for use in a telep

Dial number generator

Dial signal generator for generating dial pulse signal and dual

Dialer circuit