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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.
This was part of ISDN (Integrated Services Digital Network) and since GSM 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 usually messaging from one mobile phone to another mobile phone.Advertisers and service providers use direct text marketing to send messages to mobile users about promotions, payment due dates, and other notifications instead of using postal mail, email, or voicemail.The service is referred to by different colloquialisms depending on the region.As with emailing, in the 2010s, the sending of short informal messages has become an accepted part of many cultures.
This makes texting a quick and easy way to communicate with friends and colleagues, including in contexts where a call would be impolite or inappropriate (e.g., calling very late at night or when one knows the other person is busy with family or work activities).
Sprint Telecommunications Venture, a partnership of Sprint Corp. made the initial phone-call to launch the network, calling Mayor Kurt Schmoke in Baltimore.
and three large cable-TV companies, owned 49 percent of APC. One factor in the slow take-up of SMS was that operators were slow to set up charging systems, especially for prepaid subscribers, and to eliminate billing fraud, which was possible by changing SMSC settings on individual handsets to use the SMSCs of other operators.
Radiolinja became the first network to offer a commercial person-to-person SMS text messaging service in 1994.
When Radiolinja's domestic competitor, Telecom Finland (now part of Telia Sonera) also launched SMS text messaging in 1995 and the two networks offered cross-network SMS functionality, Finland became the first nation where SMS text messaging was offered on a competitive as well as on a commercial basis.
In 1933 RCA Communications, New York introduced the first "telex" service.