WH67 call forwarding issue in Teams

[iapbonn]

Hello together, we have massive problems with the WH67. We have bought 5 of this devices, all devices have the newest firmware 125.434.0.20

Issue:

When an employee accept an incoming call with the button on the headset, or accept the call with the button on the docking station, everything works normal, but when the call is forwarded to another employee, and the employee want forward the call back to the first or another employee, teams can't find the first employee that accepted the call. When we type the number in teams and the employee received this call, the button on the headset or on the docking station, the incoming call is rejected.

When we accept the incoming call with the button in Teams on the PC, everything works normal and we can forward the call without problems to other employees.