发明名称 CORDLESS TELEPHONE SYSTEM WITH DIFFERENT RINGING PATTERNS
摘要 A telephone system comprises: a telephone exchange with a central unit which is adapted for processing at least speech signals and call signals; a number of cordless handsets; at least one transmitter/receiver for communication between the exchange and the handsets; and a speech buffer present in each handset. The central unit is adapted for generating a call signal, the content of which depends on the nature of the connection to be made, which call signal is added to the speech signal; a handset is adapted for storing in the speech buffer and reading therefrom the content of that call signal; and acoustic and/or optical warning means are energized subject to that content.
申请公布号 WO9406254(A1) 申请公布日期 1994.03.17
申请号 WO1993NL00183 申请日期 1993.09.08
申请人 ERICSSON BUSINESS MOBILE NETWORKS B.V. 发明人 VAN OS, LUCIUS, CORNELIS, JOZEF, MARIA
分类号 H04M3/02;H04M19/04;H04Q7/38 主分类号 H04M3/02
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