Samsung Serene User Manual page 23

Using In-call options
Press OK to access the following
options during a call:
• Switch to headset/Switch to
phone: switch the call to a
Bluetooth headset or hands-free
car kit, or back to the phone.
• Menu: access the phone's menu
functions.
• Mute/Unmute: switch the phone's
microphone off or on. When the
microphone is switched off, the
person on the other end of the line
will not be able to hear you.
• Mute key tone/Send keys: switch
the key tones on or off.
Note: To communicate with
answering machines or
computerised telephone systems,
Send keys must be selected.
• Send DTMF: send the DTMF
(Dual tone multi-frequency) tones
as a group. The DTMF tones are
the tones used in phones for tone
dialling, sounding when you press
the number keys. This option is
helpful for entering, for example,
a password or an account number
for an automated banking service.
• Phonebook: access the
Phonebook list.
• SIM service: access special
services, such as news, weather,
entertainment, and location
services, provided by your SIM
card. This option is available
when you use a SIM card
supporting SIM AT menus.
• End held call: disconnect the call
currently on hold.
• Transfer: transfer the currently
active call to a caller on hold. The
two callers can talk to each other,
but you are disconnected from the
call.
• Join calls: set up a multi-party
call by adding a caller on hold to a
currently active call. You can
include up to 5 people on a multi-
party call.
• Private: have a private
conversation with one multi-party
call participant. The other
participants can converse with
each other. After the private
conversation, select Join to return
to the multi-party call.
• Reject call: disconnect one multi-
party call participant.
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