发明名称 |
Visual message waiting indication in a telephone voice message system |
摘要 |
A telephone system which offers a voice message service and which enables visual indication of waiting messages at subscriber locations using suppressed ringing connections through the switching network of the system.
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申请公布号 |
US5363431(A) |
申请公布日期 |
1994.11.08 |
申请号 |
US19920995025 |
申请日期 |
1992.12.22 |
申请人 |
BELL SOUTH CORPORATION |
发明人 |
SCHULL, JEROME W.;HOWE, WAYNE R. |
分类号 |
H04M3/537;H04M19/02;(IPC1-7):H04M11/00 |
主分类号 |
H04M3/537 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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