Yealink UH38 User Manual

| Recovery Factory Setting | 14
Handle multiple calls Description
Answer the new call and hold the current call Press and hold the Mobile button for 2 seconds.
4.The headset is on a call via Bluetooth (the Mobile button glows solid green and the busylight
glows solid red), and you can answer a new call via the USB cable at this time:
Reject the new USB cable call and continue the
current Bluetooth call
Press the PC button twice.
Answer the new call and hold the current
Bluetooth call
Press and hold the PC button.
5.Multiple calls switching
Switch calls between USB cable calls and
Bluetooth calls (ie, switch device calls)
Press the PC(or Mobile button).
Switch USB calls via the USB cable: (ie, multi-call
switching in the same device)
Press and hold the PC button (or Mobile button).
Switch from a call on the current bluetooth device
to a call on another bluetooth device
Press and hold the Mobile button for 2 seconds.
6.Conference calls
Merge the USB cable call and Bluetooth call into
a conference call
Press and hold the PC button and the Mobile button
for 2 seconds simultaneously.
Split the conference calls During the conference calls:
• Press and hold the PC button for 2 seconds to
split the conference calls. At this time, the PC
continues the call, and the mobile phone call stays
on the line.
• Press and hold the Mobile button to split the
conference calls. At this time, the mobile phone
continues the call, and the PC call stays on the
line.
Recovery Factory Setting
Procedure
Press and hold the mute button and the Teams/voice assistant key for 6 seconds until you hear the voice-
"Factory reset. Bluetooth on, remaining talk time xx hours, pairing mode". After all the button lights flash
simultaneously, the mobile button indicator will flash red and blue alternately to enter the pairing mode.
Results
The list of paired devices will be cleared and all settings are reset after the headset is restored.
Yealink USB Connect
Yealink USB Connect is a computer software designed to manage Yealink USB devices.

Yealink UH38 Specifications

General

Cable length	0.8 m
Headset type	Monaural
Product type	Headset
Certification	FCC
Product color	Black
Wearing style	Handheld
LED indicators	Yes
Operating keys	Answer/end call, Mute, Reject call, Volume +, Volume -
Control unit type	In-line control unit
Recommended usage	Calls/Music
Compatible products	T41S/T42S/T46S/T48S/T42U/T43U/T46U/T48U/ T53/T53W/T54W/T57W/T58A/VP5
Storage temperature (T-T)	-5 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Sustainability certificates	CE
USB connector	USB Type-A
Wireless range	10 m
Bluetooth version	5.1
Connectivity technology	Wired & Wireless
Impedance	32 Ω
Driver unit	35 mm
Ear coupling	Supraaural
Headphone frequency	20 - 20000 Hz
Maximum input power	10 mW
Headphone sensitivity	115 dB
Microphone type	Built-in
Microphone frequency	100 - 14000 Hz
Microphone sensitivity	-44 dB
Microphone direction type	Unidirectional

Weight and Dimensions

Weight	110 g