Telephonic communications – Supervisory or control line signaling – Substation originated
Patent
1991-02-22
1992-06-02
Dwyer, James L.
Telephonic communications
Supervisory or control line signaling
Substation originated
379355, H04M 127
Patent
active
051194171
ABSTRACT:
A RAM stores a plurality of alphabet data, and corresponding numerical value data such as national numbers of international telephone numbers and trunk codes. A RAM stores name data, the alphabet data, and telephone number numerical value data. When a switch is operated, the numerical value data are read out in the order that the corresponding national number and trunk code in the RAM are inserted in the alphabet portion in the RAM, the readout data are converted to dialing tones, and the dialing tones are output.
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Patent Abstract of Japan, vol. 11, No. 190 (E-517) [2637], Jun. 18, 1987, Subscriber Number Memory Device.
Kumai Hisao
Suzuki Satomi
Casio Computer Co. Ltd.
Dwyer James L.
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