Toll restricting method and apparatus

Details Toll restricting method and apparatus Toll restricting method and apparatus

H - Electricity

04

M

344/22, 379/36,

H04M 1/66 (2006.01) H04M 1/677 (2006.01) H04M 3/38 (2006.01)

Patent

CA 1053391

TROLL RESTRICTING METHOD AND APPARATUS ABSTRACT The invention is a toll restricting method and apparatus which restricts toll telephone calls from telephone stations by interrupting dialing sequences if from the station there is dialed (a) a restricted digit during a first pre- determined number of digits, or (b) more than a second pre- determined number of digits. Restricted dialing sequences are interrupted by disconnecting the telephone from the central office line for a period sufficient to release all the registered digits and to return central office dial tone to the telephone. Also provided are a method and apparatus for allowing absorb digits to be dialed before the counting of digits begins. A method and apparatus are additionally provided for restricting a telephone from which delays between digits dialed are greater than a predetermined time delay.

251873

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