发明名称 Telephone usage control
摘要 A device and method for controlling the use of a communication device make a determination as to whether a communication may proceed. The determination may be based upon a time reference, such as a total amount of time that the communication may proceed or an interval of time when communication is not permitted. The determination may alternatively be based upon whether the user is authorized by entry of a personal identification number prior to placing the communication. Various other considerations may be accounted for including whether the communication is to a communication address and/or whether the communication is of a particular type. If the communication may not proceed, then the circuit between a communication device and the communication network is obstructed to terminate the communication following an audio or visual warning.
申请公布号 US7356135(B2) 申请公布日期 2008.04.08
申请号 US20060492678 申请日期 2006.07.25
申请人 AT&T BLS INTELLECTUAL PROPERTY, INC. 发明人 DICKENS JAMES EDWARD
分类号 H04M1/66;H04M3/42;H04M15/00 主分类号 H04M1/66
代理机构 代理人
主权项
地址