. AUC - ( ). , . AUC , EIR.
(EIR)
EIR , . . (EIR) , , .
BSS
(BSC)
BSC , GS. , , MS, . MSC BSC.
(BTS)
BTS MS. BTS , (-) , . BSC BTS.
1.9.3.1 (OMC/OSS)
OMC OSS , X.25 , , , MSC BSC. . , .
(NMT)
(NMT). , OMC/OSS. , NMT , , OMC/OSS .
OMC/OSS NMC , .
(MS)
MS . MS, . MS , , .
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. MS , , . , , , , , , , .
MS GSM :
- ();
- (SIM).
GSM, , . - SIM. SIM , GSM. , , . , .
. 1. 3