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Using Your Phone 51
Send DTMF
When the phone is connected with other devices or services, you can
send DTMF (Dual Tone Modulation Frequency) strings. DTMF strings
are keypad tones that can be sent via the microphone as you dial
another number. Your phone will emit the tones in order to
communicate with answering machines, pagers, computerized
telephone services, and so forth.
Enter the phone number and then press to send the DTMF string.
End Call
End All
Ends all calls, whether active or on hold.
End Active
Ends only the active call.
End Hold
Ends only a call or calls on hold.
End One
Ends only a single call.
Hold/Unhold/Swap
Toggles the call status.
Mute/Unmute
Activates/cancels the silent mode.
SMS
Enters the SMS (Short Message Service — i.e. text message) menu. For
details on the SMS menu, see page 62, "Messages Menu".