Optus Internet APN Settings for Acer Liquid E700

Open App Drawer and go to Settings Mobile network settings Access point names

Press ➕ button on top right corner.

Enter name: Optus Internet
APN: yesinternet
Proxy:
Port:
Username:
Password:
Server:
MMSC:
MMS Proxy:
MMS Port:
MCC: 505
MNC: 02
Authentication type: PAP
APN type: default

Keep default values for all blank fields shown above.

Press menu button (top right) and select Save. Done.