I have another issue I could use some help on. On one of our UC500 installs the customer uses the "Call Forward All" feature on their phones when they are out of the office. So when calls come in the receptionist transfers calls to their internal extension which then causes a forward to a PSTN phone number out through another FXO port.
Incoming Call on FXO --> Reception answers ---> Attended Transfer to internal extension number ---> Call Gets forwarded our another FXO port (CfwdAll)
The problem we are having is the volume level on these forwarded calls is very low to the caller. All calls come into and out of the system via FXO ports and normal incoming calls sound just fine.
Is there a way to up the gain level on transfered calls only? I know about the FXO gain adjustments on the ports themselvers but are there other areas I could look at for volume control.