BENQ-SIEMENS S81 User Manual page 36

Siemens s81: user guide
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Send DTMF
When the phone is connected to other devices or services, you
can send DTMF (Dual Tone Multi-Frequency) strings to
communicate with answering machines, pagers, computerised
telephone services, and other similar devices.
Enter the number and then press
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 by the number or the contact.
Hold/Unhold/Swap
Toggles the call status.
Mute/Unmute
Activates/cancels the silent mode.
SMS
Allows you to read or write an SMS message during a call. For
details, see page 40, "SMS".
Calculator
Allows you to use the calculator. For details, see page 65,
"Calculator".
to send the DTMF string.
Using your phone
19

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