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cal issues.

No.

Item

Action & Function

1

PC Button

Press to enter the softphone dialing screen, answer 
or enter a softphone's call.

2

Desk Phone Button

Press to enter the phone dialing screen, answer or 
end a phone's call.

3

(Teams Edition) Teams Button

•  Hold for 2 seconds to activate Cortana (this 

requires Microsoft's support).

•  Press to invoke the Teams client in the idle state.

UC Edition) Voice Assistant Button Hold for 2 seconds to activate the voice assistant.

4

Mute Button

Press to mute or unmute the microphone.

5

Volume Up Button

Press to turn up the volume.

6

Call Control Button

•  Press to answer, reject, or end a call.
•  Hold for 2 seconds to activate Cortana (this 

requires Microsoft's support).

•  Press to invoke the Teams client in the idle state.

7

Volume Down Button

Press to turn down the volume.

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