I do have several Cisco CP-7821-K9 3PCC and one of them have a choppy down-link. By this I mean the other person a the other end sound choppy. But, I didn’t sounds choppy a the other end, the up-link seem to be fine.
All my other Cisco CP-7821-K9 3PCC as well of my Cisco ATAs aren’t suffer of that issue.
Any suggestions of some adjustment who can be done on my FreePBX instance or on the phone itself?