发明名称 System and method for caller controlled time demarcation
摘要 A method and system for providing a caller-controlled demarcation service is described. An embodiment of the present invention is advantageously implemented as an advanced service in an intelligent telecommunications network. An embodiment of the present invention allows the user to specify an interval for a telephone communication. A telecommunication switch times the communication and when the interval expires, the switch either plays a tone to signal the expiration or disconnects the call. The switch may enforce the interval for calls originating or terminating at the subscriber's phone.
申请公布号 US7499533(B2) 申请公布日期 2009.03.03
申请号 US20010003554 申请日期 2001.11.02
申请人 AT&T INTELLECTUAL PROPERTY, I, L.P. 发明人 NGUYEN HONG THI;ROBERTS LINDA ANN;SILVER EDWARD MICHAEL
分类号 H04M11/00;H04M3/38;H04M15/00;H04M15/02 主分类号 H04M11/00
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