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D900/D1800 . ( PPSC/ ) (. 2.5.3.1).

.

MR ( MS) GSM

MCR :

MOC ( GSM)

MTC ( GSM)

( GSM)

, , :

, (SCI)

( OC)

/ " "

MCR , :

(, MOC, MTC)

,

(IMSI, MSISDN)

(IMSI, MSISDN)

( )

"" MSC (VMSC) () MSC (GMSC) . , MSC, , , , . MCR . AOC (. " D900/D1800", " ", " ").

( ) ISDN/ CSC
PLMN , , GSM ( MCR, . ), , ISDN/PSTN ( ). AMA , MCR.

, ISDN/ CSC / . (, MTC, PSTN ). / (SCI) . , .

CSC :

SPM ( )
CSC D900/D1800 .

MPM ( )
CSC D900/D1800 ( ).
. , ( ), , ( , , , ( ) .

PPM ( )
CSC D900/D1800 , , ( ) . , , .

PM ( )
CSC D900/D1800 , , ( ) . , , .






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