User's Manual

46
Managing Calls
To place a call over Internet, phone must be congured to
use an Internet calling account.
After you set up the account, placing an Internet call is
not different than placing any other call. However, you
must be connected to a Wi-Fi network. When you are
making an Internet call, the phone displays Internet Call
near the top of the screen.
SIP Accounts
Internet calling is based on the Session Initiation Protocol
(SIP) for voice calls on Internet Protocol (IP) network.
To add a SIP account and congure your incoming and
outgoing preferences:
1. In the call settings screen, tap SIP Accounts.
2. Enable Receive incoming calls, to answer
incoming Internet calls.
This might reduce your phone’s battery life.
3. Tap Add account, to congure a new SIP account.
4. Enter the following details and tap Save.
• Username: Username to login to SIP account.
• Password: Password to login to SIP account.
• Server: SIP server details.
• Set as primary account: Enable to set this SIP
account as the primary account.
• Optional Settings: Tap to view/modify or
hide optional details such as authentication
username, display name, outbound proxy
address, port number, transport type and Send
keep alive options.
Use Internet Calling
1. In the call settings screen, tap Use Internet Calling
located under Internet call Settings.
2. Select one of the following options:
• For all calls when data network is available:
If this option is selected and when the phone is
connected to Wi-Fi network or mobile Internet,
each dialed call becomes an Internet call.
• Only for Internet calls: If this option is
selected, only Internet call can be dialed.
• Ask for each call: If this option is selected,
when a number is selected to dial, a dialog is
displayed to select either Cell phone call or
Internet call.
Optimizing Power During a Call
You can save battery power by switching off the display
when you are in a call. Enable Turn on proximity sensor
to switch off the display, when you answer a call.