发明名称 |
METHOD AND DEVICE FOR DETECTING INTERRUPTIONS OF SPEECH/DATA CHANNELS IN ISDN CONNECTIONS |
摘要 |
The invention relates to a method that can be used in telecommunications networks, in particular comprising ISDN connections, to identify, retain and localise an interruption of speech/data channels. Currently, an impaired connection in the signalling channel cannot be differentiated from an unimpaired connection. The input of a tone which is continuously transmitted allows a pause in speech to be differentiated from an interruption of the speech/data channel from a measuring standpoint. It is therefore possible to measure and localise an interruption in an impaired connection. Alternatively, instead of creating a tone, a definable bit pattern can also be input into the B channel.
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申请公布号 |
WO0167800(A1) |
申请公布日期 |
2001.09.13 |
申请号 |
WO2001EP01436 |
申请日期 |
2001.02.09 |
申请人 |
DEUTSCHE TELEKOM AG;KESSLER, STEFFEN;KITZ, LOTHAR |
发明人 |
KESSLER, STEFFEN;KITZ, LOTHAR |
分类号 |
H04M3/26;H04M3/32;H04Q11/04;(IPC1-7):H04Q11/04 |
主分类号 |
H04M3/26 |
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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