SSS D900/D1800 . , , D900/D1800 . , , - (LTG). (SSNC)/ (CCNC) (MTP) SS7. (SNB) . , , (, - , , ). (CP113C/CR) , , , . MSC/VLR , .. (SSS) . CP113CR ( ). . 1.4 , SSS ( CSC M‑SSP). D900/D1800. , , .
64 /c , . , . .
SSS :
- (LTG)
(DSU)
(DLU) CSC
(SN)
(SSNC)/
(CCNC)
(CP113), (MB) (CCG)
. 1.4 SSS (.. DLU CSC LTG M-SSP).
1.4 D900/D1800 SSS.
, , SSS. :
- N (LTGN) , DEC ( ) ,
(DSU) (IWF)
(DLUB) ISDN/
(SNB)
(SSNC)/
(CCNC)
(CP113C/CR), (MBC) D (MBD), (CCGB)