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42 Messaging
Trusted certificates
To establish a secure connection when using certain
WAP services, for example banking or WAP
shopping, you need certificates in your phone.
The different types of certificates are as follows:
• Server certificates are used to identify a WAP
gateway to the phone and to show that it is
certified by a trusted authority. The server
certificate is checked against trusted certificates
that are stored in the phone. If the phone cannot
verify the identity of a server, you are given the
options to terminate or continue the connection.
• Trusted certificates are used to verify the WAP
gateway that you are trying to connect to. Your
phone may already contain trusted certificates
when you buy it.You can also download trusted
certificates from Sony Ericsson or other WAP pages.
To check the certificates in your phone
1. Scroll to WAP services,
YES, Options, YES, Common,
YES, Security, YES, Trusted certif., YES.
Messaging
Text messaging
Service numbers
The number to your service centre is
provided by your operator. If the number
to your service centre is not saved on your
SIM card, you must specify the number
yourself. Otherwise you cannot reply to
received messages or send your own messages.
Your phone also features enhanced messaging
services (EMS) that allow you to add pictures,
animations, sounds and melodies to text messages.
To check the number to your service centre
1. Scroll to Messaging,
YES, Options, YES, Service
centres,
YES. If no number is found, select Add new?
and press
YES.
2. Enter the number, including the international + sign
and country code, and press
YES.