Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1994-07-25
1996-10-01
Bost, Dwayne D.
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379354, 379355, H04Q 732
Patent
active
055617050
ABSTRACT:
A radio telephone which communicates via cellular telephone networks and by direct connection to a PSTN. The radio telephone includes a random access memory for storing a character string comprising dialing digits defining a calling number and DTMF digits representing signalling tones for accessing information to called equipment. The character string includes a delimiting character for separating dialed digits and DTMF digits. In a dialing sequence, the cellular radio will dial numbers defined by the dial digits and send the remaining characters as DTMF tones to connected telephone.
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Allard David J.
Eastwood Peter R.
Goodwin Julie F.
Lewis James R.
Rasmussen David J.
Bost Dwayne D.
International Business Machines - Corporation
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