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is set on, the phone automatically answers the incoming call after one
To reject an incoming call, pull the boom down and push it up
immediately, or briefly press the answer/end key twice.
To end a call, push the boom up to its initial position, press the answer/
end key, or use the phone keys.
■ Adjust the earphone volume
Press the volume key up to increase or down to decrease the volume. To
adjust the volume quickly, press and hold the key in the desired
■ Mute or unmute the microphone
To mute or unmute the microphone during a phone call, briefly press the
middle of the volume key. A long beep sounds. When the microphone is
muted, the blue indicator light flashes continuously. The mute function
cannot be used during a PTT call.
■ Push to talk (PTT) calls
You can use the headset to make and receive push to talk (PTT) calls. To
use this network service, your phone must support it and the function
must be set to on in the phone. For more information on the PTT
function, contact your network operator or service provider and see the
user guide of your compatible phone.
To make a PTT call to the default PTT channel defined in your phone,
press and hold the middle of the volume key (while no call is in progress)
as long as you speak.
When you receive a PTT call while no call is in progress, the headset
beeps, and you start to hear speech from the channel. To answer and
speak to the listened channel within the time defined by the network
operator or service provider, press and hold the middle of the volume key
as long as you speak. To answer and speak to the default channel after
the time defined by the network operator or service provider, press and
hold the middle of the volume key as long as you speak.