scope:

The present document specifies the technical requirements to be met by terminal equipment capable of connecting to a public telecommunications network and that support the GSM High Speed Circuit Switched Data Multislot (HSCSD) feature. These requirements apply to terminals for Phase 2+ of the public land mobile radio service, operating in the 900 MHz and 1800 MHz bands with a channel separation of 200 kHz, utilising constant envelope modulation and carrying traffic channels according to the Time Division Multiple Access (TDMA) principle. The present document specifies the terminal equipment HSCSD requirements for the GSM 900 and the DCS 1800 versions of the Global System for Mobile communications (GSM).