Sony Ericsson T612 White Paper page 61

Feature
WAP profiles
WTLS (security)
Support in the T610/612 WAP browser
Dynamic - up to 5 WAP profiles, each with its own settings
Yes,
WTLS Class 1 - Encoding
WTLS Class 2 - Encoding + Server Authentication. Root Certificates needed
in phone
WTLS Class 3 - Encoding + Server Authentication + Client Certification.
Root Certificates needed in phone + special SIM cards
Sign text
61
T610/612
White Paper