Simply subscribe to Etisalat monthly blackberry complete plan by
dialing *499*3# (Monthly cost #1,000) or
Dialing *499*3*1# (weekly cost #500).
Wait for confirmation SMS from Etisalat
After receiving confirmation SMS,
.
After that simply change your APN to blackberry.net
Proxy: 10.71.170.5
Port: 8080
Save the settings.
CONGRATULATION, YOU JUST ACTIVATED YOUR BIS ON YOUR DEVICE!!
ENJOY...