We are running Call manager 4.1(3) and have done a firmware upgrade on all of our phones.... a mix of 7960's and 7970's.
Since this upgrade, the voice quality for headset users has decreased considerably and the caller on the other end now sounds tinny and echoes! The other end can hear fine though.
What could be causinig this? Has anyone else experiennced this and how would we resolve without rolling back to the earlier firmware version?
Any help is appreciated...