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| NGN | |
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2
IP- , IP- 2.
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, ;
U;
, IP-.
2 - .
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IP- .
.
: .323(Q.931), SIP MGCP (ISUP).
Q.931 :
SETUP -
CALL PROCEEDING -
ALERTING -
CONNECT -
DISCONNECT -
RELEASE -
RELEASE COMPLETE
SIP:
INVITE - . SDP-
- INVITE
BYE - . ,
CANCEL - Call-ID, , From CSeq,
CANCELREGISTER -
OPTION -
SIP :
100 , INVITE
180 Ringing
2 , ;
3 ;
4 , ;
5 , - ;
6xx , .
|
|
|
ISUP:
(call setup):
IAM -
ACM -
ANM - (call release):
REL -
RLC
3
3 , , , , , :
3-
| 1. | IP- (.323, SIP, MGCP/MEGACO/H.248) |
| 2. | .323. , .323. |
| 3. | Softswich IMS |
| 4. | SIP. SIP-. SIP ( , ). SIP-. |
| 5. | NGN , , . ( ) |
| 6. | , MPLS . |
| 7. | MPLS. MPLS. |
| 8. | IP-. IP-. . IP-. . |
| 9. | QoS- . . |
| 10. | NGN. Softswitch .( ) |
| : - , , NGN, . |
1. .
2. . .
3. , NGN.
4. NGN .
5. , .
6. NGN.
7. NGN.
8. NGN.
9. ( , , , )
10. NGN.
11. , .
12. , NGN.
13. : IP, ICMP, TCP, UDP
14. IP . IP .
15. .
16. -323. .323 .
17. , .323.
18. SIP, SIP-T. SIP . SIP. SIP.
19. , SIP.
20. RIP, BGP, OSPF. : , .
21. NGN. Softswitch. . .
22. Softswich, , , , .
23. Softswich.
24. Softswitch.
25. Softswitch, .
26. : , , .
27. IP .
28. .
29. MPLS.
30. .
31. .
32. IMS. Softswitch IMS.
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