Line *** is in use or no line
My first question here.
my user has two headsets, line 1 and line 2 on a landline.
If someone picks up line 1 on a call coming in, puts the caller on hold and either picks up line 2 or asks someone else to pick line 2, the pick that picks up line 2 hears a dial tone.
Same thing happens if the user picks up line2, puts it on hold and picks up on line 1, the user hears dial tone. The caller who is put on hold hears nothing.
Does anyone have any idea how to resolve this problem?
I have tried powering off the phones for a few seconds, powering back on. It doesn't solve the problem.
I have tried switching lines but problem persists.
Any suggestions is greatly appreciated.