@ayenco It'll be either devices or network configuration.
If you do a test using a Teams certified USB headset you can rule out devices pretty quickly, it seems unlikely but worth ruling out.
If that then leaves network, why might these devices be different to others ? Something, perhaps a firewall/NAT is likely not allowing traffic on one direction. If you dig around in the call history views you would see evidence that some data isn't flowing. Can they be connected to a different network, disable any local firewall clients etc. to verify. I've seen it before where load balancing through proxies creates asynchronous routes for data etc.
