During a call select

During a call, select 
Options
 and from the available options.
Some of the network options are 
Hold
New call
Add to conference
End all
calls
, and the following:
Send DTMF  — to send tone strings
Swap  — to switch between the active call and the call on hold
Transfer  — to connect a call on hold to an active call and disconnect yourself
Conference  — to make a conference call
Private call  — to have a private discussion in a conference call
Voice messages
The voice mailbox is a network service to which you may need to subscribe. For
more information, contact your service provider.
Call your voice mailbox
Press and hold 1.
Edit your voice mailbox number
Select 
Menu
 > 
Messaging
 > 
Voice messages
 > 
Voice mailbox no.
.
Call log 
To view the information on your calls, messages, data, and synchronisation, select
Menu
 > 
Log
 and the desired item.
Note:  The actual invoice for calls and services from your service provider may vary,
depending on network features, rounding off for billing, taxes, and so forth.
Call settings
Select 
Menu
 > 
Settings
 and 
Call
 and from the following:
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