Best way to dial *3627#
Users just have to type 'reg' and SMS to 3627.
To allow telemarketing communication again, type ‘unreg’ and SMS to 3627.
To block telemarketing communication, register your number on the Do not Call Register (DNCR)
To block spamming, type spammer's number, give a space, paste the received message & SMS to 9000.
To block obnoxious/unknown calls and SMSs, dial *420# or 420.
