User Manual

718 U Quick Start Guide Basic Operations 2-3
2. Key in the number press
2.1.13 Hands-free/Unidirectional sound amplification:
1. During a call, press and hold
2.1.14 Adjust the microphone volume:
1. During hands-free/unidirectional sound amplification status, press Æ
press
Æ to adjust the volume
2. Press
to select the volume level.
2.1.15 Adjust earpiece volume:
1. Press
2. Press to adjust the volume
3. Press .
2.1.16 Whisper mode:
1. Press
2. Press
to switch the “Whisper” function from “OFF” to “ON”.
2.1.17 Call holding:
1. During a call, press .
2. To resume the call, press again.
2.1.18 Call waiting (network support):
1. During a call, press to answer the waiting call and hold the current call.