Grandstream Gpx1610 with Echo

[Moizes Lopes]

Hi everybody!

i have a problem an my phones. They are with echo at the end of the conversation. Its only happens to users grandstream. I removed the codec G729
but it didn't resolved. Does anyone know what it is?

 

[leejor]

Is this on outside calls only? What type of trunks...SIP, Gateway? Hosted? Is this a new issue. just started? Does the 3CX Activity Log show any transcoding happening?

 

[Moizes Lopes]

Hi leejor
inside and outside calls only with user grandstream. I have a extension configured in my mobile and it doesn't happen. My SIP Trunk is Directcall and they warn me it would be the codec.
thanks

 

[eddv123]

I have never known codecs to cause echo issues, like the below I normally find echo to be something related to the hardware or acoustics: https://www.voipmechanic.com/phoneandvoicequality.htm

 

[JohnS_3CX]

Hi Moizes

What do you mean at the end of the conversation?

 

[leejor]

You seem to imply that you are also using sets, other than Grandstream. Besides a clarification on the above question, does this happen only on calls originating from Grandstream sets, or also on calls terminating on Grandsteam sets?

Is the firmware on the sets up to date? Was it updated recently... when this started?

When did this start?

Is this a hosted set up?