4.Декодирование сигнальной информации окс

ЗАДАНИЕ 4

Декодировать сигнализацию ISUP/MTP стека ОКС7.

A3 A4 22 85 6F 40 1C 00 05 00 01 00 20 00 0A 03 02 0A 08 83 10 98 09 00 00 21

0F 0A 07 03 13 94 09 00 00 21 00

MTP2: Russian specifications, 2000

0 .0100011 Backward sequence number...... 35 Dec

1....... Backward indicator bit........ 1 Dec

1 .0100100 Forward sequence number....... 36 Dec

1....... Forward indicator bit......... 1 Dec

2 ..100010 Length indicator.............. 34 Dec

00...... Spare......................... Spare

MTP3: Russian specifications, 2000

3 ....0101 Service indicator............. ISDN User Part

..00.... Spare......................... 0 Dec

10...... Network indicator............. National network

4 ***b14** Destination point code........ 111 Dec

***b14** Originating point code........ 113 Dec

0000.... Signalling link selection..... 0 Dec

ISUP-R-2000: Russian specifications, 2001

8 ***b12** Circuit identification code... 5 Dec

0000.... Spare......................... 0

10 00000001 Message Type.................. INITIAL ADDRESS

-- Nature of connection indicators

11 ......00 Satellite ind................. No satellite circuit

....00.. Continuity check ind.......... Not required

...0.... Echo control device........... Not included

000..... Spare......................... 0

-- Forward call indicators

12 .......0 National/international ind.... National call

.....00. End-to-end method ind......... No method available

....0... Interworking ind.............. Not encountered

...0.... End-to-end info ind........... Not available

..1..... ISDN user part ind............ Used all the way

00...... ISUP preference ind........... Prefered all the way

13 .......0 ISDN access ind............... Originating access non-ISDN

.....00. SCCP method ind............... No indication

00000... Spare......................... 0

-- Calling Party's Category

14 00001010 Category...................... Ordinary calling sub. cat. 1

-- Transmission medium requirement

15 00000011 Transmission medium req....... 3.1 kHz audio

16 00000010 Pointer....................... 2 Dec

17 00001010 Pointer....................... 10 Dec

18 00001000 Length........................ 8 Dec

-- Called Party Number

19 .0000011 Nature of address ind......... National (significant) number

1....... Odd/even ind.................. Odd

20 ....0000 Spare......................... 0

.001.... Numbering plan ind............ ISDN (Telephony)

0....... Internal network number ind... Routing allowed

21 ***b44** Address signal................ 8990000012F

0000.... Filler........................ 0 Hex

27 00001010 Optional parameter............ Calling Party Number

28 00000111 Length........................ 7 Dec

-- Calling Party Number

29 .0000011 Nature of address ind......... National (significant) number

0....... Odd/even ind.................. Even

30 ......11 Screening ind................. Network provided

....00.. Presentation restricted ind... Presentation allowed

.001.... Numbering plan ind............ ISDN (Telephony)

0....... CallingPN incomplete ind...... Complete

31 ***B5*** Address signal................ 4990000012

36 00000000 Optional parameter............ End Of Optional Parameters

A7 AB 0B 85 71 C0 1B 50 05 00 06 16 04 00

MTP2: Russian specifications, 2000

0 .0100111 Backward sequence number...... 39 Dec

1....... Backward indicator bit........ 1 Dec

1 .0101011 Forward sequence number....... 43 Dec

1....... Forward indicator bit......... 1 Dec

2 ..001011 Length indicator.............. 11 Dec

00...... Spare......................... Spare

MTP3: Russian specifications, 2000

3 ....0101 Service indicator............. ISDN User Part

..00.... Spare......................... 0 Dec

10...... Network indicator............. National network

4 ***b14** Destination point code........ 113 Dec

***b14** Originating point code........ 111 Dec

0101.... Signalling link selection..... 5 Dec

ISUP-R-2000: Russian specifications, 2001

8 ***b12** Circuit identification code... 5 Dec

0000.... Spare......................... 0

10 00000110 Message Type.................. ADDRESS COMPLETE

-- Backward Call Indicators

11 ......10 Charge ind.................... Charge

....01.. Called party's status ind..... Subscriber free

..01.... Called party's category ind... Ordinary subscriber

00...... End-to-end method ind......... No method available

12 .......0 Interworking ind.............. Not encountered

......0. End-to-end info ind........... Not available

.....1.. ISDN user part ind............ Used all the way

....0... Holding ind................... Not requested

...0.... ISDN access ind............... Terminating access non-ISDN

..0..... Echo control device........... Not included

00...... SCCP method ind............... No indication

13 00000000 Pointer....................... 0 Dec

A7 AC 09 85 71 C0 1B 50 05 00 09 00

MTP2: Russian specifications, 2000

0 .0100111 Backward sequence number...... 39 Dec

1....... Backward indicator bit........ 1 Dec

1 .0101100 Forward sequence number....... 44 Dec

1....... Forward indicator bit......... 1 Dec

2 ..001001 Length indicator.............. 9 Dec

00...... Spare......................... Spare

MTP3: Russian specifications, 2000

3 ....0101 Service indicator............. ISDN User Part

..00.... Spare......................... 0 Dec

10...... Network indicator............. National network

4 ***b14** Destination point code........ 113 Dec

***b14** Originating point code........ 111 Dec

0101.... Signalling link selection..... 5 Dec

ISUP-R-2000: Russian specifications, 2001

8 ***b12** Circuit identification code... 5 Dec

0000.... Spare......................... 0

10 00001001 Message Type.................. ANSWER

11 00000000 Pointer....................... 0 Dec

B0 AC 0D 85 6F 40 1C 00 05 00 0C 02 00 02 80 90

MTP2: Russian specifications, 2000

0 .0110000 Backward sequence number...... 48 Dec

1....... Backward indicator bit........ 1 Dec

1 .0101100 Forward sequence number....... 44 Dec

1....... Forward indicator bit......... 1 Dec

2 ..001101 Length indicator.............. 13 Dec

00...... Spare......................... Spare

MTP3: Russian specifications, 2000

3 ....0101 Service indicator............. ISDN User Part

..00.... Spare......................... 0 Dec

10...... Network indicator............. National network

4 ***b14** Destination point code........ 111 Dec

***b14** Originating point code........ 113 Dec

0000.... Signalling link selection..... 0 Dec

ISUP-R-2000: Russian specifications, 2001

8 ***b12** Circuit identification code... 5 Dec

0000.... Spare......................... 0

10 00001100 Message Type.................. RELEASE

11 00000010 Pointer....................... 2 Dec

12 00000000 Pointer....................... 0 Dec

13 00000010 Length........................ 2 Dec

-- Cause Indicators

14 ....0000 Location...................... User

...0.... Spare......................... 0

.00..... Coding standard............... ITU-T

1....... Extension..................... Last octet

15 .0010000 Cause value................... Normal call clearing

1....... Extension..................... Last octet

AC B3 09 85 71 C0 1B 50 05 00 10 00

MTP2: Russian specifications, 2000

0 .0101100 Backward sequence number...... 44 Dec

1....... Backward indicator bit........ 1 Dec

1 .0110011 Forward sequence number....... 51 Dec

1....... Forward indicator bit......... 1 Dec

2 ..001001 Length indicator.............. 9 Dec

00...... Spare......................... Spare

MTP3: Russian specifications, 2000

3 ....0101 Service indicator............. ISDN User Part

..00.... Spare......................... 0 Dec

10...... Network indicator............. National network

4 ***b14** Destination point code........ 113 Dec

***b14** Originating point code........ 111 Dec

0101.... Signalling link selection..... 5 Dec

ISUP-R-2000: Russian specifications, 2001

8 ***b12** Circuit identification code... 5 Dec

0000.... Spare......................... 0

10 00010000 Message Type.................. RELEASE COMPLETE

11 00000000 Pointer....................... 0 Dec