发明名称 |
AN ARRANGEMENT FOR THE CONTROL OF AN ECHO CANCELLER |
摘要 |
The operation of an echo canceller (4A to 4D) is controlled by a call control (2) of a telephone exchange over an internal control bus (3, 5) of the telephone exchange. The exchange then attends to the necessary signalling and the echo canceller does not need to know how the associated signalling is routed in the telephone network. |
申请公布号 |
AU2888792(A) |
申请公布日期 |
1993.06.07 |
申请号 |
AU19920028887 |
申请日期 |
1992.10.28 |
申请人 |
NOKIA TELECOMMUNICATIONS OY |
发明人 |
HEIMO LAHDEMAKI;VESA SARKIKANGAS;PERTTI SALONEN |
分类号 |
H04B3/23;H04M3/00 |
主分类号 |
H04B3/23 |
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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