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Yealink UH38 Mono and UH38 Dual

1 min read

Getting Started #

Package Contents #

  • UH38 Mono

  • UH38 Dual

Overview #

Item Action & Function
Bluetooth on/off Button and Mobile Talk • Press and hold for 5 seconds while powered off to enter the Bluetooth pairing mode (the button flashes red and blue). Then, search for and connect Yealink UH38 on your mobile phone.
• Press and hold for 5 seconds to turn off Bluetooth.
• Bluetooth device call control button: press to answer, reject, or end a mobile call.
Mute/unmute Button Press to mute or unmute the microphone.
PC Talk Button USB-connected device call control button: press to answer, reject, or end a PC/desk phone call.
Volume up Button
Volume down Button
Press to turn up/turn down volume.
(Teams Edition) Teams Button • Press and hold for 2 seconds to activate Cortana integrated with Teams (this requires Microsoft’s support).
• Press to invoke the Teams client.
(UC Edition) Voice Assistant Button Press and hold for 2 seconds to activate the voice assistant.

NOTE:

Before using the Teams feature, you should install the Microsoft Teams client on your PC.

FAQ #

How to turn on the UH38 busylight?

You can simultaneously press and hold the +/- volume button for 5 seconds to turn on the busylight when the headset is not in a call. The red light on the side of the headset is always on, and the voice prompts the busylight on. You can simultaneously press and hold the +/- volume button for 5 seconds to turn off the busylight.

LED Indicator Status #

Busylight Indicator #

Introduction of the busylight indicator on both sides of the headset:

Indicator Description
Flash red Incoming call rings
Solid red During a call

Mobile/PC Button Indicator #

  • Mobile Button Indicator
Indicator Description
Solid green for 2 seconds Enable Bluetooth
Flash red and blue alternately for 500 ms/time Bluetooth enters the pairing state
Solid red for 2 seconds Disable Bluetooth
Solid blue for 2 seconds Bluetooth pairing succeeded
Flash green Receive an incoming call
Solid green During a call
Flash green twice Stay on the line
Flash red slowly Low battery level
  • PC Button Indicator
Indicator Description
Flash green Receive an incoming call
Solid green During a call
Flash green twice Stay on the line
The green light flashes slowly during the upgrade Headset is being upgraded (when the upgrade is complete, the LED indicator of the mobile button, mute button, and PC button flash simultaneously for 1 second and then turns off)

Teams/Voice Assistant Indicator #

When the headset activates the voice assistant, the button backlight is always on. When the headset works with Teams Client, the button backlight is shown below:

Indicator Description
Flash white slowly Receive a missed call/voice message/meeting notification
White LED indicator flashes slowly and turns into solid white Teams connected successfully
White LED indicator flashes slowly and then turns off Teams is not connected
Twisted VoIP