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Is there not a different way to do that, ie:<BR>
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echocancel=31speech or<BR>
echocancel=always<BR>
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combined with:<BR>
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echocan_taps=32
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echocan_train=350
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Is chan_ss7 using your VPMADT032 at all?<BR>
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How do you tell whether you are using s/w echo or the hardware module?<BR>
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jorge.<BR>
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Hello
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I have the following setup:
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Ast1.6.1.18+Chan-SS7 1.3 --> TE221 Board + VPMADT032 hw echo canceller --> E1 to Mobile MSC E/// AXE10
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I assume the hardware module is detected as the following message appears:
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wcte12xp: VPM present and operational (Firmware version 117)
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Calls are initiated via a SIP Client with G729, codec available on the server.
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On most of the calls, the quality is crystal clear - however, on some specific numbers, there is a huge echo perceived on the SIP client.
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This happens to some specific numbers, though 99%+ of the calls are ok - all these numbers (with or without echo) are served by the same E1, so nothing changes on my side. I am connected to a mobile GSM operator, when I call this number from one of their cellphones, there is no echo...
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Any suggestions as what to check ?
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Many thanks,
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J.
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