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2017
1. . . .
2. , .
3. 3G - UMTS. UMTS.
4. (DSS1) ( ). LAP-D.
5. Q.931. . .
6. V5.1, V5.2. V5.2. V5.2.
1.
, n . .
:
: 768
1 : 6
: 64 .
: 171
: 5 1, 14.
10 .
: 54.
2
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2017
1. . . , , , .
2. : , . . .
3. . . .
4. . .
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2017
1. , . . .
2. . . . , . .
1. M/M/3/k=v, 2 / 3% . |
2. call- : - 120 ; - 30 ; - 400; - 21. |
|
|
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( ..) 2017
1. . .
2. TMN (). TMN.
3. TMN. ( MIB Global Tree).
4. SNMP. SNMP. (PDU) SNMP v.1.
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( ..) 2017
1. IP/MPLS .
2. (NGN). NGN .
3. .
4. VPN. VPN L1, L2, L3.
5. .
6. .
7. (BWA).
:
1. TCP- TCP:
- MSS=1420 ,
IP- RTT=100 ,
IP- p=0,01
2. ( ) RTP/UDP/IP/Ethernet :
G.729
IP- 6.
3. SIP-tlf (1) (2) ( IP-).
.
4. U SIP-tlf (1) (2) ( IP-).
.
" "
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2017
1. (TDM-KK) IP-
2. IP- (H.323, SIP, MGCP/MEGACO/H.248)
3. SIP. SIP-. SIP ( , ). SIP-.
4. . , . .
1
IP-
.
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2017
1.
2.
3. , . .
4. Softswitch.
5. IMS.
|
|
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2017
1. Internet.
2. Web-.
3. .
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2017
1. . .
2. : (D)BPSK, QPSK, QAM, GMSK, OFDM, TCM. .
3. , .
4. Ethernet: , , (Transparent Bridge IEEE 802.1D). MAC (FDB).
5. Ethernet-: VLAN, STP, , QoS, . .
6. IP . . MAC (FDB), ARP . Ethernet IP .
:
1. , , , , . 20; 100; 50; 430.
2. ()= x 3 + x+1. . , ?
3. , 16 . , 3,7,13 .
4. , 4 . , .
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2017
1. , , .
2. . . .
3. : .
4. . .