BlackBerry 8520
None

I would suggest for any Blackberry customer with AIRTEL to NOT to opt for Rs. 249/- or Rs. 499 Plan. They are limited download facility with per KBPS setting and that way you pay thouands of rupees to AIRTEL for FREE.

Opt ONLY for Rs. 299/ - (no internet browsing / Emails & Messenger only) or Rs. 899/- plan (unlimited browsing / emails etc .)