Static heard on all Google Voice calls on OBi202
azrobert:
You can call the other Phone Port by dialing "#". This will eliminate any problem caused by the network.
LotharX:
Quote from: drgeoff on March 09, 2017, 10:06:38 am
Dial **0 and let it ring until the Auto Attendant ('Obiwoman') answers. How does she sound on your two handsets? I hear less background "noise" on her than him.
You may be able to mitigate the static by reducing the level of the audio signal sent from the 202 to the handset. Physical Interfaces, Phone1 (or 2) Port, Port Settings, ChannelTxGain. Reducing the value there (more negative if already negative) gives lower volume from the handset earpiece
Thanks drgeoff, I tried your suggestions.
Calling that **0 number did result in less background noise (almost none), and OBiwoman's voice sounded a lot less scratchy than OBiman's voice did on the echo test number. The scratchy quality is still there, but barely perceptible.
Calling **0 using the corded phone sounds a bit better. It sounds very good actually, but not perfect.
I found the ChannelTxGain setting that you mentioned, in the advanced section of the web-based dashboard. It will not allow me to change the default value (-5). In fact, there is no setting on that entire page that I am able to change. The only things that can be changed on that page are selecting either of the two checkboxes next to each setting ("Device Default" or "OBiTalk Settings").
Changing the checkbox for that particular setting changes the setting from -5 to -2. So those are the only two values possible for that setting, unless I am missing something.
There are red exclamation point icons to the right of both the ChannelTxGain and ChannelRxGain fields. None of the other settings on that page show that icon. What does that mean?
I tried the -2 setting, just out of curiosity, and when I then tried to call the echo test number, I heard a very loud buzz, then it disconnected the call (before I even heard OBiman's voice), and then it went back to dial tone. I then tried the echo test again, and this time it connected. I heard his voice, with the same scratchy sound quality, sounding no different than on the -5 setting.
So I changed it back to -5, called Obiman again, and once again I heard the loud buzz and then back to the dial tone. I then tried Obiman again and this time it went through (with the same scratchiness).
I'd be very interested in trying a lower (more negative) setting, if there is a way to specify a particular value.
drgeoff:
You need to have both boxes unticked at the right hand end of the line before you can change the value for that line. You can put any integer values between 6 and -12 in those gain fields. Tx controls volume heard by you. Rx controls level of what the OBi receives from your microphone and sends to the other end of the call.
The red exclamation marks merely indicate that the values are no longer the default ones.
LotharX:
Quote from: azrobert on March 09, 2017, 10:50:09 am
You can call the other Phone Port by dialing "#". This will eliminate any problem caused by the network.
Excellent suggestion, thanks!
I tried that, and the sound quality through the receiver of the cordless phone (while speaking into the microphone of the corded phone) sounds very good. It wasn't perfect, but I didn't notice any substantial scratchiness.
It was rather hard to evaluate though, because the sound of my voice coming out of my mouth made it hard to isolate the sound of my voice coming out of the phone. So I was hearing my voice from two different places (live vs. transmitted), if that makes sense.
drgeoff:
When you click submit the portal will download the settings to your OBi and the OBi will then reboot. It was probably that reboot that interrupted your test call and gave you dial tone again when the reboot completed.
The Admin Guide (http://www.obihai.com/OBiDeviceAdminGuide) says the gain values can be 12 to -12 and the defaults are both 0.
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