[asterisk-users] Echo problem in VoIP-calls

[Jonas Kellens]

Hello,

I also thought about echo because the Zoiper softphone is used with a 
headset. But that didn't explain why the echo also appeared on the 
analogue phone + gateway.

I have the same Grandstream GXW 4008 gateway with 5 analoge phones 
attached in another environment and there, there are no echo-problems. 
Can't say the analogue phones that are being used there are top of the 
bill, rather cheap stuff actually.

When calling through the analogue phone line, there is no echo (and it 
seems therefore that the analogue phones that are being used meet the 
quality standards).

The only network-element that is different in the 2 environments is the 
router...



Jonas.


On 06/30/2010 11:06 AM, Gareth Blades wrote:
> Echo cannot be caused by a router.
> The zoipher softphone is probably being used with a headset and I
> suspect the microphone is picking up the sounds from the earphones
> resulting in echo. Try turning down the earphone volume to see if this
> helps. If it does invest in some better headphone preferably ones where
> the microphone has built in background noise cancelation.
>
> For the analogue phone it could be a similar issue. Some phones are
> better than others. Cant you use a proper SIP phone? They work so much
> better.
>
>    
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