Telephone dialing hardware/software add-on for the ZX81/TS1000/TS1500 which stores as many telephone numbers as you have room for and calls any one of those number for you on command.
Compudex
The Authoritative Website for Timex/Sinclair Computers
The Authoritative Website for Timex/Sinclair Computers
Telephone dialing hardware/software add-on for the ZX81/TS1000/TS1500 which stores as many telephone numbers as you have room for and calls any one of those number for you on command.