Activating GPRS / MMS on SUN Cellular

As a public service, here is a way to activate GPRS / MMS on a SUN Cellular phone:

Automatic Activation of GPRS/MMS/WAP

Go to Menu -> Services -> WAP -> Settings -> Edit Profile
Select Sun WAP, Press Activate Profile and Save
Go to Menu -> Messages -> MMS -> Message Settings -> Server Profile
Select Sun MMS, Select Activate Profile and Save
For corporate accounts, fax a letter of request and ID of the authorized signatory to 395-0138. Approval and activation maybe slightly delayed.
Text “ACTIVATE” and send to 2300
If unable to activate,please call Sun Customer Hotline (200 on your mobile phone).

* If surfing or MMS sending does not work or results in an error, please proceed to the next step for manual setting.

I'd like to credit this blog for the information I got, and you can proceed there for more information on data settings for a number of phones for SUN.