T46 & T48 bad ekko when using speaker

[martinfonet]

Hello

This occus no matter what the volume settings are set to. Even if the microphone and speaker are set to low, the echo persists.

The echo is not there when using the handset, only when on speaker.

Actually this happens on all our T4x models! (we have tested quite a few by now).

(10-17-2014 06:33 PM)Yealink_Lucas Wrote:  Hello
sorry to reply later.We judge it cause by external or something wrong in speaker.
1,Do you use handset have same issue?
1,what the environment and configuration of phone do the issue occur, in a closed environment and volume is max status?