I have an x100p which suffers from echo (no surprise there apparantly :), and a few of the things I've read about tuning out echo say the first thing to get right is the tx and rx gain, and for that you need a few different types of test lines from the telco (Telstra, Optus, whatever). Does anyone have any numbers in Australia for such lines? I think they just need to send out a tone of a known frequency and power.
Next, while the TDM400 card has control over the line impedence circuitry, the x100p doesn't. Does anyone know of an addon device which can do impedence matching on the line, or of a modification to the card (eg component swapping) which could allow some manual adjustment? Finally, my echo is really really awful early in the call but then gets markedly better, which I assume is a result of the echo training done during the call. Is it possible to grab the echo coefficients after training and use them as a starting point for next time? Or would this vary too much between calls? Thanks James _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
