Normally the echo canceller suppresses echo on the near end (Linphone). From your description I guess you are talking of the far end echo. Does the echo depend on the call participant?
-------- Original message --------
From: Alexis Riopel <address@hidden>
Date: 5/26/17 14:36 (GMT+01:00)
To: address@hidden
Subject: [Linphone-developers] Echo and delay
Hi,
I just started using Linphone Android 3.2.7 on a LG G2 cellphone running on Android 4.4.2.
Even if I use the echo cancellation option, I can't get rid of a (very annoying) echo on the distant phone as well as a (slightly less annoying) delay between each phone.
I wonder if it might be caused by a interference between a built-in echo cancellation on my phone and Linphone's echo cancellation. Using Linphone's automatic calibration, the parameter is set to 330 ms, but I can't choose it myself on the app.
Thanks for your help,