Wireless Telecommunication

Intelligent Network (IN)

SSPSCP

SIBSIB

SIBSIBSIBSIBSIBIN

PSTNPDNN-ISDNB-ISDNPLMN

14N-ISDN 2538

1981 AT&T 1984Bellcore1992ITU-TINCS-1381997ITU-TINCS-2 16INCS-3 INCS-4B-ISDNinternet

WIN * * *

WIN VPNUPTFPHNumber Portability) VHE

cdma1X

WINCS-2WIN phase 1 PN-4287 WIN phase2

3GPP2 * * * * * * *

SIB