The Sprint venture was the largest single buyer at a government-run spectrum auction that raised .7 billion in 2005 for PCS licenses. SMS is available on a wide range of networks, including 3G networks.
The GSM in the US had to use a frequency allocated for private communication services (PCS) – what the ITU frequency régime had blocked for DECT – Digital Enhanced Cordless Telecommunications – 1000-feet range picocell, but survived.
American Personal Communications (APC), the first GSM carrier in America, provided the first text-messaging service in the United States.
The term originally referred to messages sent using the Short Message Service (SMS).
It has grown beyond alphanumeric text to include multimedia messages (known as MMS) containing digital images, videos, and sound content, as well as ideograms known as emoji (happy faces ,sad faces ,and other icons).
Under SS7, it is a "state" with a 160 character data, coded in the ITU-T "T.56" text format, that has a "sequence lead in" to determine different language codes, and may have special character codes that permits, for example, sending simple graphs as text.