Am back again with a new trick ..it is a tweak found in the sms center of BSNL. This BSNL unlimited sms trick is fully based on message center number. It is very simple, only need to change message center number.
Deal Details :-
* Goto Message
* Message Settings
* Message centers
* now you can see message center number as +919417399997 ,change this to +91941739999700
* Save the settings
* Now when you want to send sms. select the new message center number as message message center number
Important Note – Switch off delivery reports for text messages [ in some case, sms charges may charge due to delivery reports ]
Note – This trick only works when you are roaming. and also you cannot send international sms by this sms trick.