Settings>Connectivity>Destinations:

You can see here, got:

Access point(it is for WiFi),
Internet,
Multimedia msg.,
WAP services,
Uncategorised.

Open Internet, you can see: A WiFi SSID, Optus Internet,

Optus Internet:
Connection name: Optus Internet
Data bearer: Packet data
Access point name: internet
User name: None
Prompt password: No
Password:
Authentication: Normal
Homepage: None
Use access point: Automatically

Optus MMS:
Connection name: Optus MMS
Data bearer: Packet data
Access point name: mms
User name: None
Prompt password: No
Password:
Authentication: Normal
Homepage: http://mmsc.optus.com.au:8002/
Use access point: Automatically

Options: Advanced settings: Proxy server address: 61.88.190.10 Proxy port number: 8070

Optus Zoo:
Connection name: Optus Zoo
Data bearer: Packet data
Access point name: wap.optus.net.au
User name: None
Prompt password: No
Password:
Authentication: Normal
Homepage: http://networker.optus.net.au/wap/index.wml
Use access point: Automatically

Options: Advanced settings: Proxy server address: 202.139.083.152 Proxy port number: 8070

Connection name: Optus Streaming
Data bearer: Packet data
Access point name: wap.optus.net.au
User name: None
Prompt password: No
Password:
Authentication: Normal
Homepage: None
Use access point: Automatically