It may simply be referred to as a text in North America, the United Kingdom, Australia, New Zealand and the Philippines, an SMS in most of mainland Europe, or an MMS or SMS in the Middle East, Africa, and Asia.The sender of a text message is commonly referred to as a texter.

This was part of ISDN (Integrated Services Digital Network) and since GSM (Groupe Sp├ęcial Mobile) is based on this, made its way to the mobile phone.

Messages could be sent and received on ISDN phones, and these can send SMS to any GSM phone.

The possibility of doing something is one thing, implementing it another, but systems existed from 1988 that sent SMS messages to mobile phones to be messaging from one mobile phone to another mobile phone.

Text messaging, or texting, is the act of composing and sending electronic messages between two or more mobile phones, or fixed or portable devices over a phone network.

The term originally referred to messages sent using the Short Message Service (SMS).

It has grown to include multimedia messages (known as MMS) containing images, videos, and sound content, as well as ideograms known as emoji.

The service itself has different colloquialisms depending on the region.

Friedhelm Hillebrand conceptualised SMS in 1984 while working for Deutsche Telekom.

Sitting at a typewriter at home, Hillebrand typed out random sentences and counted every letter, number, punctuation, and space.

Almost every time, the messages contained fewer than 160 characters, thus giving the basis for the limit one could type via text messaging.

it is a "state" with a 160 character data, coded in the ITU-T "T.56" text format, that has "sequence lead in" to determine different language codes, and can have special character codes that allows (for example) sending simple graphs as text.