Complex sentence: GTP is the primary protocol used in the GPRS core network it is the protocol which allows end users of a GSM or UMTS network to move from place to place whilst continuing to connect to the Internet as if from one location at the GGSN.
Split into simpler sentences: GTP is the primary protocol used in the GPRS core network. I 10:28,21 February 2007 (UTC) t is the protocol which allows end users of a GSM or UMTS network to move from place to place whilst continuing to connect to the Internet as if from one location at the GGSN.