(MF) OMS (OS) BSS SSS. MF Q3 TMN OMS OS ( ) Q3 OMS SSS BSS, (. " D900/D1800", " ", " GSM PLMN").
:
GSM GPRS HLR OS CMISE
MSC OS (DPPS) FTAM
/ SSS BSS OS (, (NMC)) CMISE
IMEI MSC OS ( EIR) FTAM
Q3- OMC-B .
(CSC)
(CSC) :
PLMN (MSC, VLR ..)
(LE, , EWSD).
(. . 2.1) CSC:
GSM GSM
GSM
GSM-RITL ( , GSM)
ISDN/ ,
ISDN , (PABX), .
GSM | GSM | GSM | MSISDN (NDC) | |
GSM-RITL | , (LAC) | |||
ISDN/ | ITU-T |
2.1 CSC ( ).
GSM-RITL
GSM-RITL, GSM, , , GSM, .. , . GSM-RITL , :
CSC PLMN: (PSTN) GSM-RITL (" PSTN") CSC .
CSC PSTN: (PSTN) GSM , GSM-RITL ( PSTN).
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, , . , ( ) PSTN " " (.. ), GSM.
, CSC, GSM-RITL , GSM . . , . CSC GSM-RITL PLMN ( , MSC, HLR, AC, VLR, EIR, ) , , PSTN "-PLMN", , PLMN (, , ..). , (, PLMN) .
, GSM, GSM-RITL (. " D900/D1800", " ", " " " ").
. 2.3 . 2.4 , GSM-RITL .
2.3 CSC GSM-RITL PSTN.
2.4 CSC GSM-RITL PLMN.
GSM-RITL , .