1. Yes. It is simple. With below step
a. Go to digi store and sign up the package. Get the simcard and wait for line activation. Mine was activate around 4 hours.
b. Once Digi activated. Call up Maxis and told them U want to terminate your BIS package. IMPORTANT: Ask them to release your device PIN too. The pro-rated bill will be settle later on.
c. Once b complete. Put your digi simcard. Go into email setting and set them up.

2. No need to go digi BIS website. Email setting can done from BB

3. The most important thing here is ASK MAXIS TO RELEASE DEVICE PIN when U terminate their BIS.

Hope this help.

From my experience of terminating my Celcom XPAX prepaid BIS , simply doing the "call Celcom to release my BIS PIN" doesn't effing work. They insisted on getting my butt to one of their Celcom centres ( not dealer shops! ) , in my case was Menara PKNS in PJ , to physically sign a friggin' form to indicate "Celcom, please release my blackberry PIN" . In the form, the counter agent will record down your Blackberry PIN and IMEI. From then on, wait 2-24 hours.

While you're waiting for 2-24hours , if you insert your DiGi sim card into your berry , you should have reasonable signal bar value , and the network type would be in lowercase . Example "edge" , or "3g" . In this situation , you should be able to make calls and sms, but you will not have DiGi BIS ready. You could also surf the net using the Blackberry browser in WAP mode instead of through BIS.  If you're doing this WAP browsing, charges will be applied and itemised in your unbilled view / billed statement. However, at the point of your monthly statement is being released, you can call up DiGi to waive this WAP usage.

In my case, the after 3 or 4 hours, BIS has been released by Celcom and DiGi's BIS was activated automatically ( i did not need to call up DiGi to activate it , or neither do i need to set something else in my phone) . At this point , you shall see uppercase letters like "EDGE" , and "3G" instead of lowercase.

From my experience of terminating my Celcom XPAX prepaid BIS , simply doing the "call Celcom to release my BIS PIN" doesn't effing work. They insisted on getting my butt to one of their Celcom centres ( not dealer shops! ) , in my case was Menara PKNS in PJ , to physically sign a friggin' form to indicate "Celcom, please release my blackberry PIN" . In the form, the counter agent will record down your Blackberry PIN and IMEI. From then on, wait 2-24 hours.

While you're waiting for 2-24hours , if you insert your DiGi sim card into your berry , you should have reasonable signal bar value , and the network type would be in lowercase . Example "edge" , or "3g" . In this situation , you should be able to make calls and sms, but you will not have DiGi BIS ready. You could also surf the net using the Blackberry browser in WAP mode instead of through BIS.  If you're doing this WAP browsing, charges will be applied and itemised in your unbilled view / billed statement. However, at the point of your monthly statement is being released, you can call up DiGi to waive this WAP usage.

In my case, the after 3 or 4 hours, BIS has been released by Celcom and DiGi's BIS was activated automatically ( i did not need to call up DiGi to activate it , or neither do i need to set something else in my phone) . At this point , you shall see uppercase letters like "EDGE" , and "3G" instead of lowercase.

no need to set the authentication.. only tick the APN Settings