. 2.
: IAM ( )
00000001: Message type.........IAM-Initial address
--Nature of connection ind
000.....: Spare.................00 Hex
... 0....: Echo control device..Not included
.... 00..: Continuity check......Not required
...... 00: Satellite.............None in the connection
--Forward call inds
01......: ISUP preference......Not required all the way
.. 1.....: ISUP part............Used all the way
... 0....: ETE info.............None avail
.... 0...: Interworking..........None encountered
..... 00.: ETE method...........No ETE avail
....... 0: Call type..........National
0000....: Reserved (nad use)..00 Hex
.... 0...: Spare...............00 Hex
..... 00.: SCCP method.........No indication
....... 0: ISDN access..........Originating access non-ISDN
--Calling party cat
00001010: Category............Original calling subscriber
--Tx medium requirement
00000011:Tx medium...........3.1 kHz audio
00000010: Pointer..............2 Dec
00001001: Pointer.............9 Dec
--Called party nr
00000111: Length.................7 De
0.......: Odd/Even ind.........Even
. 0000011: Nature of addrind...National (significant) nr
1.......: INN ind...............Routing to INN not allowed
. 001....: Numbering plan.........ISDN (telephony)
.... 0000: Spare..................Ok
********: Address signal........0957491157
00001010: Optional para.........Calling party number
--Call party number
00000101: Length................5 Dec
0.......: Odd/Even ind.........Even
. 0000011: Nature of addr........National (significant) nr
0.......: NI indicator............Nr complete
. 001....: Numbering plan.........ISDN (telephony)
.... 00..: Presentation...........Allowed
...... 11: Screening...............Net provided
********: Address signal.......458002
00000000:Optionalpara.........End
ISUP, ISUP
A 03 02 0A 08 83 90 18 32 92 94 01 0F 0A 07 03 13 83 21 12 82 28 00
IAM
01 00 48 00 0A 03
01 F1
00 F2
48 00 F3
0 F4
03 F5
| F1 | MT=01→IAM | |||||||||
| F2 F3 F4 F5 | H 0 | G0 | F 0 | E 0 | D0 | C0 | B0 | A0 | . , , | |
| H0 | G 1 | F 0 | E 0 | D1 | C0 | B0 | A0 | . , -, ISUP , ISDN ISUP | ||
| P 0 | O 0 | N0 | M0 | L 0 | K0 | J 0 | I 0 | |||
| 0A | ||||||||||
| 3.1 |
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IAM 02 0A 08 83 90 18 32 92 94 01 0F
| . . V1 Called number part) | V | ||||||||||
| 0A | V | ||||||||||
| 8 | |||||||||||
| (Called number part) | |||||||||||
| 0 0 0 0 0 0 0 1 | |||||||||||
IAM
07 03 13 83 21 12 82 28 00
| . 1 (Calling party number) | 0A | |||||||||
| O1 (7 ) | ||||||||||
| 8321128228 (Calling party number) 3812212882 | ||||||||||
1 1: 2 3 DSS.1
N(S)- ; N(R)- ;
P- 2 (P=1- );
S- ; M- ;
P\F P , F ();
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X- 0.
| SAPI | |
| ISDN ( ) | |
| Q.931 |
| TEI | |
| 0-63 | TEI |
| TEI |
| C\R | ||
| C\R=1 | \R=0 | |
| C\R=0 | C\R=1 |
| DSS | ||||||||||
| ALERTING | ||||||||||
| CALL PROCEEDING | ||||||||||
| () | CONNECT | |||||||||
| CONNECT ACKNOWLEDGE | ||||||||||
| SETUP | ||||||||||
| DISCONNECT | ||||||||||
| INFORMATION | ||||||||||
| RELESE | ||||||||||
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| ( ) | ||||
| ( ) |
3 DSS
. 3 , .
| , Q.931- DSS-1 | ||
| 3 , X.25 |
2 2: 2 3 . ISUP. .
ISUP
| ACM | Address complete | ||
| ANM | Answer | ||
| IAM | Initial address | ||
| INF | Information | ||
| REL | Release | ||
| RLC | Release complete |
ISUP
| (Access transport) | ||
| , (Backwardcallindicators) | ||
| (Calledpartynumber) | ||
| (Callingpartynumber) | 0 | |
| (Callingparty'scategory) | ||
| (Forwardcallindicators) | ||
| (Continuity indicators) |
:
1. .., .. 7. .: , 2008.
2. .. 7. , , . .: -, 2008.
3. .. , 2 .: , 2001.
4. .. 7: ISUP. .: , 2003.
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