Telephone interface protection circuit and modem using same
Telephone interrupter
Telephone line called number recognizer
Telephone line exclusion device
Telephone line interface and dialer circuitry for telecommunicat
Telephone line interface option module
Telephone line interfacing circuit used for both voice and...
Telephone line monitoring apparatus and method
Telephone line powered system
Telephone line priority sharing device
Telephone line sharing for a personal computer system
Telephone line use enablement of lottery or fund participation
Telephone line use enablement of lottery participation
Telephone line use enablement of lottery participation
Telephone line use enablement of lottery participation
Telephone line use enablement of lottery participation
Telephone line-assist powered apparatus with programmable...
Telephone lottery play system
Telephone message printing method and apparatus
Telephone monitor circuit and method