I was having a issue wherein two of my CP-7811 IP phones the audio quality was bad wherein the audio sounds like "robotic" sound. I have seen work around wherein "Disable Opus codec support via Service Parameters on CUCM." but it seems that the version of my call manager is not hitting the bug. I'm not sure what other things i must check to fix the issue. Do i need to configure the QOS of my router or do i have to check other things
Thank you appreciate you all community.
Get a sniffer from the call, if it sounds OK then it might be a problem with the device/FW, if it already arrives sounding robotic, you'll need to find out if it might be the other end having the problem, or if something in the network might be causing that.
You can try with a different FW to find out if it's the device or not.