I’m guess this is a configuration issue, hence this topic.
Occasionally, outbound callers get distorted echoes of their own voice. It’s not constant, in that it changes within a call, and is only affects some calls (even if to the same destination).
Any ideas of where I might start to look to resolve this?
The phones are all configured to use ulaw, as is the SIP trunk that goes via an spa3102 to a BT POTS line.
FXO’s though analog lines are notoriously echo prone, you will be dependent on your ATA ability to best handle it.
Things to look at are the "complex impedance " of the circuit adjusted to BT’s expectation, echo correction/suppression also is only possible on the ATA,
The SPA3100 series are well known to be incompetent here, maybe an obi?
OK, thanks for that. The impedance should be OK, but I’ll check.
Excuse my ignorance, what’s an obi?
Somewhere, I’ve got an old 2x2 DAHDI board that I used in an old PBX, but it’s no use to me as I’m running FreePBX on a Pi. I believe there are PSTN HATs though. I’ll take a look.
Obihai (now Polycom) makes FXO/FXS ATA devices.
This topic was automatically closed 31 days after the last reply. New replies are no longer allowed.