I have a number of Polycom Duo phones with them plugged directly into the network jack and nothing plugged into the data port. They are all on:
UC Software Version 4.0.10.0568 BootROM Software Version 5.0.10.0028
They register to an Avaya Session Manager 6.3.
The problem is phones have poor voice quality for the far end. Have added external mics but did lilttle good. It appears to be two problems one that the mic isn't on for the first part of a sentence when someone speaks. So far end instead of hearing Welcome how are you today far end hears "ome how are you today".
Second part seems like phone only allows speaker or mic to be active at one time. So if far end is talking no one can break in or interrupt the far end from speaking. Is there a setting that can be toggled?
Thank you for any suggestions.