D900/D1800 ISDN (CSC) (. 2.5).
2.5 CSC ISDN PLMN.
ISDN:
ISDN:
(BA) ISDN PABX,
(PA) PABX ISDN.
GSM (" D900/D1800", " ", " GSM PLMN"), PLMN ISDN. CSC. . 2.2 . 2.3 .
ISDN, | BA | BA/PA | PA |
ISDN | -------- | -------- | -------- |
, | |||
, 64 /, , | |||
, 3,1 , | |||
, , | |||
, , | |||
ISDN | -------- | -------- | -------- |
3.1 | |||
7 | |||
, 3 | |||
, 4 | |||
*) | |||
*) |
*) GSM BS2.x GSM.
2.2 ISDN CSC.
ISDN ISDN | BA | BA/PA | PA |
ISDN | ------- | ------- | ------- |
/ , CLIP/CLIR | |||
/ , COLP/COLR | |||
(CFU) | |||
, (CFB) | |||
, (CFNR) | |||
(CW) | |||
(HOLD) | |||
(CUG) | |||
(TP) | |||
(MSN) | |||
(SUB) | |||
(DDI) | |||
, 1 (UUS1) | |||
ISDN | ------ | ------ | ------ |
, (CCBS) | |||
" " | |||
PBX | |||
PABX PABX (PA) | |||
DDI PABX | |||
" " | |||
(RSCI) CF |
2.3 ISDN CSC.
|
|
PABX PABX (PA)
(. . 2.3) PABX ISDN ( 30 B 1 D) (. 2.6). PABX , . D, PA, MML . PABX . PA (, ).
2.6 PABX PABX PA ISDN.
:
ISDN CSC PLMN.
CSC .
. 2.4.
/ 3.1 | |
, | |
, | |
, | |
, (CCBS) | |
(CUG) | |
" " | |
(RSCI) CF |
2.4 CSC.