Nokia N73 - Data Call; Sip Settings

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addr., enter the IP address of the secondary DNS server.
Contact your Internet service provider to obtain these
addresses.
Proxy serv. address—Define the address for the proxy
server.
Proxy port number—Enter the proxy port number.
Packet data
The packet data settings affect all access points using a
packet data connection.
Packet data conn.—If you select When available and
you are in a network that supports packet data, the device
registers to the packet data network. Starting an active
packet data connection (for example, to send and receive
e-mail) is quicker. If there is no packet data coverage,
the device periodically tries to establish a packet data
connection. If you select When needed, the device uses a
packet data connection only if you start an application or
action that needs it.
Access point—The access point name is needed to use your
device as a packet data modem to your computer.
Configurations
You may receive trusted server settings from your network
operator or service provider in a configuration message,
or the settings may be stored on your (U)SIM card. You can
save these settings to your device, view, or delete them in
Configs..
SIP settings
SIP (Session Initiation Protocol) settings are needed for
certain network services using SIP, such as video sharing.
You may receive the settings in a special text message
from your network operator or service provider. You can
view, delete, or create these setting profiles in SIP
settings.
Data call
The data call settings affect all access points using a GSM
data call connection.
Online time—Set the data calls to disconnect
automatically after a time-out if there is no activity.
To enter a time-out, select User defined, and enter the
time in minutes. if you select Unlimited, data calls are not
disconnected automatically.