Method for the automatic insertion or removal of a calling...

Details Method for the automatic insertion or removal of a calling... Method for the automatic insertion or removal of a calling...

H - Electricity

04

M

H04M 1/53 (2006.01) H04M 1/2745 (2006.01) H04M 1/57 (2006.01) H04Q 3/72 (2006.01)

Patent

CA 2110656

With Calling Number Identification (CNID) service, Frequency Shift Keying (FSK) data is sent over the tele- phone lines to the telephone service customer. A tele- phone subscriber may prevent their name/number from being transmitted to the party they are calling on a per call basis by dialing a prefix before they dial the desired number. The present invention allows for the automatic insertion/removal of that prefix in the number stream when the called party's number is dialed. This feature is accomplished by inserting a $ character into the dial- ing sequence. If the blocking feature is enabled, the $ is translated to the numeric sequence necessary to pre- vent the transmittal of one's telephone number. In the alternative, the $ is translated to a meaningless delim- iter if the feature is disabled.

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