Telephone dialing paging apparatus method

Details Telephone dialing paging apparatus method Telephone dialing paging apparatus method

1989-08-18

1993-05-18

Dwyer, James L.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379354, 379355, H04Q 700

Patent

active

052127214

ABSTRACT:
A tone only pager including an EEPROM with telephone numbers stored therein at different predetermined addresses and a DTMF signal generator. If a received signal includes one of the predetermined addresses, a DTMF telephone number corresponding to the address is generated. If a received signal also includes a different telephone number, any telephone number stored at that predetermined address may be replaced with the different telephone number. The pager also determines if the telephone number is a long distance telephone number and activates an indicator in response thereto.

REFERENCES:
patent: 4071697 (1978-01-01), Bushnell et al.
patent: 4490579 (1984-12-01), Godoshian
patent: 4747122 (1988-05-01), Bhagat et al.
patent: 4757267 (1988-07-01), Riskin
patent: 4847886 (1989-07-01), Chumley
patent: 4851829 (1989-07-01), DeLuca et al.
patent: 4885762 (1989-12-01), Suzuki et al.
patent: 4951043 (1990-08-01), Minami

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