Echo issue

Hi all,

I have client who is experiencing echo issues on and off.
Sometimes they hear themselves on the phone and sometimes it works normally.
It is 6l pbx firmware 5.2.47
I checked with the phone company and all the pstn lines are ok.
Should I update the pbx, to see it helps with the echo issue or is there something else I can do to trouble shoot this issue.

Krs,

Zet

Try to reduce the transmit gain on IP phone or FXO port of Quadro6L. If it doesn't help then get in touch with Epygi's tech support.