(ISDN Integrated Services Digital Network) , .
- , () , . 11.1.
() . , , , .
:
- ;
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( 11.1) .
11.1
, , (NT).
(-) - , , D, , , .
.
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D 16 64 /.
64 /, , , , .
- 64 /;
- D 16 /;
-
0 384 /|
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- 11 1536 /
- 12 1920 /
(BRA Basic Rate Access) 2+D = 144 /, 192 /, . (PRA Primary Rate Access) 30+D (- , ).
. : . () . - . , . (, ) . , , . , , .
2 :
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2) ( ):
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- :
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- . . . . - 64 ;
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11.1 [6]
| , | , , , , | |
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| -4 | ||
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- - 2+D. , , /. , , , .
80- (CNET, , Bell Labs, ) - (B-ISDN Broadband Integrated Services Digital Network). - , . , -, . , ATM (Asynchronous Transfer Mode).
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ATM , , [24].
ATM:
1) () 48 ;
2) ( , . ), 5 , ATM 53 ;
3) ATM ATM;
4) ;
5) ATM , .
-, ATM :
- (, , , - , ) ;
- () ;
- ( ).
() , .
(IN) ITU T( ):
(IN - Intelligent Network ) -
(IN) - , .
11.2
(IN) . , , . , , .
(IN) SCP, ѹ7 , SSP. SSP (IP) ( 11.2).
SSP (Service Switching Point) , (), , SCP;
IP (Intelligent Peripheral) , SSP ( , DTMF, .);
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SCP (Service Control Point) , (IN) (IN);
SDP (Service Data Point) ;
SMP/SCEP (Service Management Point/ Service Creation Environment Point) , .
(IN). ITU T ( ) ETSI ( ) (CS Capability Set) CS1, CS2, CS3 CS4. 5-6 CS1.
CS1:
(FPH FreePhone);
(PRM Premium Rate);
(CCC Credit Card Calling);
(VPN Virtual Private Network);
(VOT Televoiting).
(IN) , , .
(IN), , . SSP, SCP ( ) . SSP, SCP - . (IN) , , .
(IN) . (IN) :
1) (IN) ;
2) ;
3) .
(IN), SSP , ( 10.3). (IN) DEF 800809 ( 11.2). (IN) :
DEF 123 4..n,
(8, 0);
DEF (IN), (800809);
123 ( 100799);
4..n , .
11.2 DEF (IN)
| DEF | |
( 11.3). , .
11.3
( ) (8) . (SSP) (IN) SCP, . SCP, SSP, . ( ). . .
, , . , , , - .
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[24]:
1) ;
2) , ;
3) , .
. , , , . . , .
, , . (/ ), (, IP). IP- ( ) /. , / . /. . , /, , .
FMC (Fixed/Mobile Convergence). , UMTS (Universal Mobile Telephone System) , , , .
, , (CTI Computer/Telephony Integration). (Call Centers), . , , , .
, , .
