[asterisk-users] Echo problem in VoIP-calls

[Gareth Blades]

Yes if you have a link where there is a lot of jitter it may affect the 
call quality. I would try turning it off to see if it cures the problem 
and if it does then you can restore the setting and implement a workaround.

Jonas Kellens wrote:
> Will turning off the jitter buffer affect the quality of the other calls ??
> 
> jbenable = no
> 
> I must say I'm not really into these jitter-settings in asterisk. I made 
> jbenable=yes as "it can do no harm"...
> 
> 
> Jonas.
> 
> 
> On 06/30/2010 04:24 PM, Gareth Blades wrote:
>> Try the SIP phone. If it is better then you might try looking to see if 
>> there are any echo cancelation settings on the softphone or analogue 
>> adapter you can change. Try turning echo cancelation off aswell since if 
>> there are two running they can interfere with each other and make the 
>> situation worse.
>>
>> If you hear echo on that phone then it might be that the network 
>> connection from that location has a higher latency making the echo far 
>> more noticeable.
>> If the other party you are connecting to hears echo then this could be 
>> down to the phone or the jitter buffer. If you start with a small jitter 
>> buffer the echo cancelation will train to that but if you get increased 
>> jitter the buffer will grow and add an additional delay to the audio. 
>> Often echo cancelation only trains at the start of a call.
>> Maybe try disabling the jitter buffer.