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