Help with echoes and disconnects.
Lavarock7:
Yes, I meant bluetooth on the far side. Still, probably not the problem but just thought I'd throw it in. In analog phones, I seem to remember that echo was caused by mismatched impedance.
2ooarmz:
The annoying echo, oddly enough, is just with one particular number, and they do not have Bluetooth. Any other echoes are very faint; but still, would like to reduce them.
I've been looking online and some say to try lowering your RX and TX values (different sites say they are talking about the ChannelTxGain & the ChannelRxGain). I don't know though if "lowering" is, for example, changing from
-2 to -1; or
from -2 to -3.
There's disagreement here in our household as to which direction I should try (up or down).
Elsewhere, I found others said that this helped with echoes:
FXO ACImpedance setting of 275+780||115nf and the Tx/Rx gains back to the default settings.
I don't know where to find the "FXO ACImpedance" settings.
drgeoff:
OBi110s have two impedance settings - one for the PHONE port and one for the LINE port. Your OBi202 does not have a LINE port.
Changing impedance of your OBi PHONE port will have little if any effect on the echo you hear which is coming from the far end. (But it may affect echo heard by the far end so probably best left at 600 if your phone is intended for use in the USA.) Some of your speech is being sent back to you by such things as poor electrical balance in the 4-wire to 2-wire hybrid in the distant Local Office, poor electrical balance in the 2-wire to 4-wire hybrid in the distant phone or acoustic leakage of received audio into transmitted audio at the far end. The latter could be due to a poor handset design, a damaged handset or the use of a loudspeaking phone. All of those things are outside your control.
That the echo is much higher on only some number(s) means that the cause is not at your end and there is nothing you can do to eliminate it. You can tweak the gain control to attempt a better balance between echo and normal conversation.
Try reducing the ChannelRx gain. That is the gain that the 202 applies to the signal FROM your phone and thus modifies the level of the signal that is sent to the other end. Make is more negative. Try it in small steps, subtracting 1 from the current value there each time. Your speech will be sent slightly quieter to the far end so it will also be quieter when echoed back to you. Also, the lower level of your voice heard at the far end will tend to make the person there speak more loudly. So what you hear is louder wanted and quieter unwanted.
Echo is less apparent when the delay is short. Do you also notice longer delay on the calls with high echo?
2ooarmz:
Thank you drgeoff for the detailed info!
Quote
probably best left at 600
Where exactly is the setting? (So that I can check if it is at 600)
Quote
subtracting 1 from the current value
I'm terrible at math, especially when it comes to negative numbers ??? So, if the setting is at
-2
to subtract from it would be:
-1 ??
or
-3 ??
Quote
Do you also notice longer delay on the calls with high echo?
I'm not sure; but the other person will often talk over me, as if she doesn't know that I am talking. So maybe she's not hearing me right away.
I'm thinking that it is a problem at her end; especially because, the other day when we talked, there was no echo...it was so nice!! Anyway, she said that she was on her cell, not her landline. She still maintains, though, that it must be a problem with my phone because she only hears echoes when she's talking with me. (She has a regular Verizon landline.)
Taoman:
Quote from: 2ooarmz on June 12, 2016, 07:54:24 pm
I'm thinking that it is a problem at her end; especially because, the other day when we talked, there was no echo...it was so nice!! Anyway, she said that she was on her cell, not her landline. She still maintains, though, that it must be a problem with my phone because she only hears echoes when she's talking with me. (She has a regular Verizon landline.)
My bet is the problem is Phonepower and the cheaper routes they use. Been there, done that.
Don't know how much effort you want to put into this to find out for sure or not. But if desired you could get a free DID from IPComms and configure it on your OBi. I believe IPComms still gives you 50 minutes of free outbound minutes in addition to the unlimited incoming minutes with the free DID. If you contact support they also let you spoof your outgoing number to whatever your main number is.
http://ipcomms.net/freedid
I bet you a buck if you made/received a call to the same number using IPComms there would no echo and no disconnects. IPComms only uses Tier one routes. You can hear the difference compared to Phonepower on many calls. I have a 90 year old Dad who is very hard of hearing. I will only use my IPComms line when calling him.
PS. You said you had similar problems when calling the same person using a Grandstream ATA. Were you still using Phonepower as your provider when using that adapter? If not, you can forget the IPComms idea.
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