Echo with OBI202 using pstn USB dongle
Gavo:
Hello,
Unfortunately my OBI110 came off worse in a fight with a lightning strike so I set-up a spare 202 with the pstn dongle.
It works fine apart from an annoying echo on incoming calls. I'm presuming there are optimum tx/rx gain settings to stop this issue ?
(impedance is matched to my BT pstn line so I don't believe impedance mismatch to be the problem)
Cheers
Gavin
ProfTech:
Ouch. This is specifically why I junked a Linksys and bought the 110. The linksys had a horrible echo and the firmware for it was obsolete and no longer supported by Cisco. I never really had any echo to speak of with my 110. It pretty much "just worked" out of the box. I've always wondered about the 200/202 and the USB adapter. About the only thing I can think of that might affect the echo might be the level at which the Obi feeds the phone line. I'm not sure what setting it would be in the 202. Maybe you are hitting the phone line a little too hard. I think the impedance setting is pretty obvious. I think it is either right or wrong. Anyway, good luck. Maybe I should order a spare 110 while they are still available. Problem is, I've been considering the 200 because it has more ITSP slots. I could use one more. :-\
Mango:
Looking at Amazon reviews, it seems that two of the six reviewers also report echo. Though one of the remaining isn't using the device with a POTS line, and at least one seems to suggest he's not using it with an OBi. So those Amazon reviewers who have echo is more like two in four.
Please keep us updated if you're able to solve this. Have you raised this issue with Obihai support? I would be very surprised if they released an inherently defective product.
drgeoff:
Quote from: Gavo
It works fine apart from an annoying echo on incoming calls.
Do you really mean that calls you dial don't have the echo?
willmw:
I have the same issue. I contacted support and they recommended I adjust the tx and rx gain settings which I did. It helps some, but I still have a considerable echo. For the record, the echo is on any pstn call...incoming or outgoing.
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