Nokia 6170

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number has the seven last digits as a contact saved in 
Contacts
, the information 
may not be displayed correctly.
■ Options during a call
Many of the options that you can select during a call are network services. To 
check availability, contact your network operator or service provider.
During a call, press 
Options
 to select from the following:
Mute
 or 
Unmute
End call
End all calls
Contacts
Menu
 and 
Hold
 or 
Unhold
Lock keypad
Record
, and 
New call
 (network service),.
Conference
 to make a conference call that allows up to five persons to 
participate (network service). During a call, make a call to a new participant 
(
New call
). The first call is put on hold. When the new call is answered, select 
Conference
 to include the first participant in the conference call. To have a 
private conversation with one of the participants, select 
Private call
, and select 
the desired participant. To rejoin the conference call, select 
Add to conference
.
Send DTMF
 to send DTMF (Dual Tone Multi-Frequency) tone strings, for 
example, passwords or bank account numbers. The DTMF system is used by all 
touch-tone telephones. You can key in the wait character w and the pause 
character p by repeatedly pressing 
.
Swap
 to switch between the active call and the call on hold (network service), 
Transfer
 to connect a call on hold to an active call, and disconnect yourself 
from the calls (network service).