发明名称 Telephone device having customized ring capability
摘要 A telephone set incorporates a conventional keypad to allow the user to program a custom ring tone and pattern into the telephone set. After such programming is established, when the telephone set detects a ring signal from the central switching station, a ringer is activated and deactivated according to the programmed ringing parameters so as to provide a truly customized ring signal to the user.
申请公布号 US4866766(A) 申请公布日期 1989.09.12
申请号 US19880240180 申请日期 1988.09.06
申请人 MOTOROLA, INC. 发明人 MITZLAFF, JAMES E.
分类号 H04M19/04 主分类号 H04M19/04
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