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To switch the microphone back on, proceed as follows.
1. Press the Options soft key.
2. If necessary, press the key to highlight the
Unmute option.
3. Press the OK soft key.
Your correspondent can hear you again.
Muting/Sending Key Tones
These options allow you to turn the key tones off or on.
If the Mute keys option is selected, your phone does
not transmit the key tones. It allows you to press keys
without hearing annoying key tones during a call.
Note: To communicate with answering machines or
computerised telephony systems, the Send keys
option must be selected.