Yealink WHB660 - Page 7

We sincerely recommend you to use Yealink Ticketing system (https://ticket.yelink.com) to submit all your technical
issues.
No. Item Action & Function
1 Touch Screen
• Display phone's system status.
• Tap to select and highlight touch-sensitive screen items.
2 Mute Button Press to mute or unmute microphone.
3 Volume Up Button Press to turn up volume.
4 Call Control Button
• Press to answer, reject, or end a call.
• Hold 2 seconds to activate Cortana (this requires Microsoft's
support).
• Press to invoke the Teams client in the idle state.
5 Volume Down Button Press to turn down volume.