airtel india gprs/mms/ota/3G/apn/pocket int. SETTINGS.

Airtel GPRS | MMS | WAP |3G Settings 
How to Activate 3G | GPRS | MMS | WAP Settings:
Activate 3G:
To activate 3G services SMS 3G to 121 You will get a reply form Airtel saying that reply with 1 to activate 3G. Once you reply a sms with 1 to 121, You will receive the 3G settings after activation ( This may take up to 4Hrs). Save the received settings as default settings
Or you can call  12134 to activate 3G

aircel india gprs/mms/ota/3G/apn/pocket int. SETTINGS.

Automatic settingsAircel Pocket Internet Service To use the AIRCEL Pocket Internet facility you need to download the GPRS setting of AIRCELBy sending an SMS "PI" to 121You will receive the settings. You can save it as a default setting on your handset. This service will only work on GPRS/ WAP enabled handsets. After you've save d the setting, the pocket internet page gets saved as default page in your Web Browser.