, GSM . MS. , .
(MSISDN)
(Mobile Station ISDN number - MSISDN) PSTN. .
8.1 MSISDN
CC (Country Code) -
NDC (National Destination Code) -
SN (Subscriber Number)
PLMN NDC. , NDC 086 087, PLMN. PLMN NDC. MSISDN . 15 , (+7). Beeline +7 903 XXX XXXX.
(IMSI)
International Mobile Subscriber Identity (IMSI) . . PLMN. IMSI SIM, HLR VLR.
IMSI :
8.2 IMSI
MCC (Mobile Country Code) -
MNC (Mobile Network Code)
MSIN (Mobile Station Identification Number) MS
GSM IMSI 15 .
(TMSI)
Temporary Mobile Subscriber Identity (TMSI) - IMSI, MS . , .
TMSI ( MSC/VLR) (Location Update). TMSI , 8 . TMSI , IMSI, , .