Method and apparatus for pulse/tone detection and selection

Details Method and apparatus for pulse/tone detection and selection Method and apparatus for pulse/tone detection and selection

1991-07-12

1993-07-13

Dwyer, James L.

Telephonic communications

Supervisory or control line signaling

Substation originated

379 38, H04M 126

Patent

active

052280799

ABSTRACT:
A method and apparatus for permitting a telephonic device to select the mode of dialing, pulse or tone, which is proper for the local telephone network interface to which it is connected.

REFERENCES:
patent: 4947423 (1990-08-01), Watanabe

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