Obi202 Echo Help Please
CoalMinerRetired:
I have to question the above.
Based on studying up on the subject, and some practical usage, I'm of the opinion that echo is rarely if ever at all caused by the digitized part of a VoIP circuit or route. Network data packets do not repeat or echo like analog voice signals in an analog circuit, like a microphone. And, on the receiving end of the digitized VoIP packet algorithms reconstruct the incoming data in the correct order and do not for example allow overlap, repetition or 'replay' of the same incoming packet. So, for everyone's information, are there any actual examples of why or how the above is a factor in eliminating echo? Note that the above sometimes is a factor in choppy speech, but that is not the same as echo.
In addition, I'll add that the previously mentioned test of doing some calls entirely in the Gmail Call/Chat feature in a browser, there by fully eliminating the Obi device and any analog components, is easier to do that the above reconfiguration of subnets.
tpir72:
OK, I'm getting a little lost on this. The settings I have are:
DHCP
IP Address: 192.168.1.1
SubnetMask: 255.255.255.0
DefaultGateway: 192.168.1.1
DNSServer1: 4.2.2.2
DNSServer2: 8.8.8.8
QoS General Settings
UpStreamBandwidth: 40960
RestrictedBandwidth: 10240
Everything else is set to default.
Where specifically do I change this?
1. Separate your data and voip traffic into two different vlan/subnets.
Example:
Data = vlan1/192.168.1.1
Voip = vlan3/192.168.3.1
2. Qos:
Setup your Quality of Service for Voip to the highest priority and leave everything else the same.
tpir72:
Hi,
I'm running out of things to try to solve the echo. I just had one incoming call that had a huge echo (me @ work and the wife @ home).
Can someone with an Obi202 please help me tweak this (step-by-step)?
Thanks everyone for the help...
Regards,
Terry
There are couple more things you can try to resolve your problem.
1. Separate your data and voip traffic into two different vlan/subnets.
Example:
Data = vlan1/192.168.1.1
Voip = vlan3/192.168.3.1
2. Qos:
Setup your Quality of Service for Voip to the highest priority and leave everything else the same.
I don’t know if can do the above on your router but you can set it up on your Obi202 for sure. Since I don’t own Obi202, I cannot walk you through the setup. If you are having trouble setting it up then may I suggest that you either grab a manual and learn or ask someone here for help.
QBZappy:
tpir72,
Can you identify a pattern of when calls have echo.
eg:
PSTN<->sip
PSTN<->GV
sip<->sip
tpir72:
Hi,
If I understand the terminology correctly, it is PSTN<->GV
I only use Obi202 to make a receive calls over my normal home phone. I don't use GV with a headset on my PC. I also don't use the Obi to Obi feature.
In this setup my Obi202 is also my router.
Regards,
Terry
Quote from: QBZappy on March 02, 2013, 07:34:51 pm
tpir72,
Can you identify a pattern of when calls have echo.
eg:
PSTN<->sip
PSTN<->GV
sip<->sip
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