can I adjust volume
RonR:
Quote from: Billy2Hats on July 16, 2011, 09:57:23 pm
When we receive an incoming pstn call through the OBi110, we hear an echo of our own voice.
Outgoing SIP calls are fine, at least on SP1 have not tried SP2 yet.
Then it may be LINE Port ChannelRxGain/ChannelTxGain that you need to adjust.
Billy2Hats:
Thanks Ron, "LINE Port ChannelTxGain" adjustment has helped with the issue of us hearing an echo of our own voice.
OBiSupport:
Where are you located? in US? Echo on LINE port is mainly related to impedance mismatch, you might also check on LINE port impedance and see if one of them works better for you without much attenuation on the volume.
OBiSupport:
For both PHONE (FXS) and LINE (FXO) port, audio path direction are defined from OBi device perspective.
- TX path conveys the signal sent from OBi device towards PHONE port (analog telephone), and/or LINE port (Central office (CO)).
- RX path conveys the audio signal sent from PHONE (telephone) / LINE port (CO) towards OBi device.
From this definition, we have TX/RX audio path on PHONE and LINE port
PHONE port -
TX: from OBi towards telephone
RX: from telephone towards OBi
LINE port -
TX: from OBi towards CO
RX: from CO towards OBi
RonR:
Quote from: RonR on May 14, 2011, 09:01:40 am
Note: The OBi Device Administration Guide has the description of ChannelTxGain and ChannelRxGain reversed.
Quote from: OBiSupport on July 19, 2011, 12:04:39 pm
For both PHONE (FXS) and LINE (FXO) port, audio path direction are defined from OBi device perspective.
Somehow I missed that the PHONE Port Gain's were swapped around in the OBi starting with firmware update 1.2.1 (Build: 2289):
- PHONE Port ChannelTxGain and ChannelRxGain parameters are applied opposing direction.
I'm glad to see that was fixed.
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