How to get gprs settings by sms?

>For Airtel Send ALL to 543210 by sending this you'll get settings of all gprs modes active in ur number such as Airtel live,mobile office&NOP
>For Aircel send PI to 121 PI means Pocket Internet
> For Bsnl send your handset model no. to 58355 eg: if you are using N79 then send NOKIA N79 to 58355
> For Docomo send INTERNET to 52270
> For Idea send SET to 546714
> For Vodafone send VL to 52586