Bulk sms is a service when a company sends sms to a mass of people at a single click. These are online pc to mobile sms's which are sent using internet. These are also called push sms services as these sms's are pushed from the company's end. Bulk sms services helps in building brand as with the help of mass sms one can enter one's life via his mobile phone.

Short Codes are small unique numbers which are not only easy to remember but also able to receive huge number of replies every second. Short codes can receive sms only and cannot receive calls, so the company do not face any kind of hassle in receiving calls. Also these codes can be used for marketing as well as feedback services and we cannot forget their use in voting purpose on various reality shows.