We have a customer that installed IP500 R5 with ATM4 for 4 analog trunks and several IP phonesets (IP1608 and wifi phone). The voice level on internal call without problem, but low voice level on conversation with external party.
We have tried to change ATM4 module and adjust "gains" of each analog trunk line but still no improvement.
Any other idea or parameter could be adjust?
We have tried to change ATM4 module and adjust "gains" of each analog trunk line but still no improvement.
Any other idea or parameter could be adjust?