communications agent supports this service.
●To activate this function, please refer to the instructions of your mobile phones manual to make sure your phone program sup- ports this function.
●When the triple phone conversation is on board, it can not return to the mode of having only Call 1 or Call 2.
●When the triple phone conversation has not been activated, you can press the decrease
●If Call 1 is maintained and Call 2 is on line, quickly press the function button to end Call 2 and renew Call 1.
18. Adjusting the Volume
During a call, you may adjust the Headset’s volume.
1.To increase the volume, press the increase (+) volume key.
2.To decrease the volume, press the decrease
Note:
●You will hear the “Du Du” sound while adjusting the volume up to the loudest or lowest.
19.Safety instruction
1.Read the Headset manual carefully and use the headset cor- rectly by following the instructions.
2.Keep the Headset away from children, avoid children from swallowing it accidentally.
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