To create a SIP profile, select Options > New SIP profile > Use default profile or
Use existing profile.
To select the SIP profile you want to use by default for communication sessions,
select Options > Default profile.
Edit SIP profiles
Select Menu > Ctrl. panel > Settings and Connection > SIP settings.
Select Options > Edit and from the following:
Profile name  — Enter a name for the SIP profile.
Service profile  — Select IETF or Nokia 3GPP.
Default destination  — Select the destination to use for the internet connection.
Default access point  — Select the access point to use for the internet connection.
Public user name  — Enter your user name provided by your service provider.
Use compression  — Select if compression is used.
Registration  — Select the registration mode.
Use security  — Select if security negotiation is used.
Proxy server  — Enter the proxy server settings for this SIP profile.
Registrar server  — Enter the registration server settings for this SIP profile.
Edit SIP proxy servers
Select Options > New SIP profile or Edit > Proxy server.
Proxy servers are intermediate servers between a browsing service and its users
used by some service providers. These servers may provide additional security and
speed up access to the service.
Select from the following:
204 Settings