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Станция Nec 2000 ips.
Входящая связь и исходящая организована по Е1.
Проблема следующая:
Очень часто ( но не всегда) не возможно прозвониться на входящие номера- выдает занято, хотя номера по факту свободны.
И ещё бывает что соединение произошло вызываемый абонент трубку снял, а в ответ тишина ( и со стороны вызывающего и вызываемого абонентов)
Вот скрипт PRA на АТС
10 рут - В канал
12 рут- D канал


COMMAND=050
050>04
050>04:12-

COMMAND=0701
0701>0401
0701>0401:D101-
0701>0402:D102-
0701>0403:D103-
0701>0404:D104-
0701>0405:D105-
0701>0406:D106-
0701>0407:D107-
0701>0408:D108-
0701>0409:D109-
0701>0410:D110-
0701>0411:D111-
0701>0412:D112-
0701>0413:D113-
0701>0414:D114-
0701>0415:D115-
0701>0416:D116-
0701>0417:D117-
0701>0418:D118-
0701>0419:D119-
0701>0420:D120-
0701>0421:D121-
0701>0422:D122-
0701>0423:D123-
0701>0424:D124-
0701>0425:D125-
0701>0426:D126-
0701>0427:D127-
0701>0428:D128-
0701>0429:D129-
0701>0430:NONE-
0701>0431:NONE-
DATA ERROR

COMMAND=482
482>04
482>04:0-

COMMAND=AA03
AA03>04
AA03>04:7-

COMMAND=AA15
AA15>04
AA15>04:0-

COMMAND=AA14
AA14>04
AA14>04:0-

COMMAND=AA06
AA06>04
AA06>04:24-

COMMAND=0608
0608>0
0608>0:04-

COMMAND=3000
3000>101
3000>101:10-
3000>102:10-
3000>103:10-
3000>104:10-
3000>105:10-
3000>106:10-
3000>107:10-
3000>108:10-
3000>109:10-
3000>110:10-
3000>111:10-
3000>112:10-
3000>113:10-
3000>114:10-
3000>115:10-
3000>116:12-
3000>117:10-
3000>118:10-
3000>119:10-
3000>120:10-
3000>121:10-
3000>122:10-
3000>123:10-
3000>124:10-
3000>125:10-
3000>126:10-
3000>127:10-
3000>128:10-
3000>129:10-
3000>130:ERROR
3000>131:ERROR

COMMAND=3002
3002>101
3002>101:18-
3002>102:18-
3002>103:18-
3002>104:18-
3002>105:18-
3002>106:18-
3002>107:18-
3002>108:18-
3002>109:18-
3002>110:18-
3002>111:18-
3002>112:18-
3002>113:18-
3002>114:18-
3002>115:18-
3002>116:31-
3002>117:18-
3002>118:18-
3002>119:18-
3002>120:18-
3002>121:18-
3002>122:18-
3002>123:18-
3002>124:18-
3002>125:18-
3002>126:18-
3002>127:18-
3002>128:18-
3002>129:18-
3002>130:ERROR
3002>131:ERROR
3002>132:ERROR
3002>133:ERROR
3002>134:ERROR
3002>135:ERROR
3002>136:ERROR
3002>137:ERROR
3002>138

COMMAND=303
DIGIT ERROR

COMMAND=3003
3003>101
3003>101:18-
3003>102:18-
3003>103:18-
3003>104:18-
3003>105:18-
3003>106:18-
3003>107:18-
3003>108:18-
3003>109:18-
3003>110:18-
3003>111:18-
3003>112:18-
3003>113:18-
3003>114:18-
3003>115:18-
3003>116:31-
3003>117:18-
3003>118:18-
3003>119:18-
3003>120:18-
3003>121:18-
3003>122:18-
3003>123:18-
3003>124:18-
3003>125:18-
3003>126:18-
3003>127:18-
3003>128:18-
3003>129:18-
3003>130:ERROR
3003>131:ERROR

COMMAND=3007
3007>101
3007>101:000-
3007>102:001-
3007>103:002-
3007>104:003-
3007>105:004-
3007>106:005-
3007>107:006-
3007>108:007-
3007>109:008-
3007>110:009-
3007>111:010-
3007>112:011-
3007>113:012-
3007>114:013-
3007>115:014-
3007>116:NONE-
3007>117:015-
3007>118:016-
3007>119:017-
3007>120:018-
3007>121:019-
3007>122:020-
3007>123:021-
3007>124:022-
3007>125:023-
3007>126:024-
3007>127:025-
3007>128:026-
3007>129:027-
3007>130:ERROR
3007>131:ERROR

COMMAND=3500
3500>10
3500>10:00-
3500>12
3500>12:15-

COMMAND=3502
3502>10
3502>10:3-
3502>12
3502>12:3-

COMMAND=3504
3504>10
3504>10:2-
3504>12
3504>12:7-

COMMAND=3505
3505>10
3505>10:1-

COMMAND=3509
3509>10
3509>10:08-
3509>12
3509>12:15-

COMMAND=3511
3511>10
3511>10:3-

COMMAND=3512
3512>10
3512>10:3-

COMMAND=3512
3512>12
3512>12:3-

COMMAND=3514
3514>10
3514>10:1-

COMMAND=3515
3515>10
3515>10:NONE-

COMMAND=3516
3516>10
3516>10:0-

COMMAND=3518
3518>10
3518>10:0-

COMMAND=3519
3519>10
3519>10:7-

COMMAND=3528
3528>10
3528>10:0-

COMMAND=3539
3539>10
3539>10:1-

COMMAND=3589
3589>10
3589>10:0-
3589>12:0-

COMMAND=3590
3590>10
3590>10:3-
3590>12
3590>12:3-

COMMAND=200
200>3
200>3:803-
200>4
200>4:803-

COMMAND=08
08>403
08>403:1-

COMMAND=410
410>50
410>50:05-

COMMAND=410
410>57
410>57:05-

COMMAND=08
08>028
08>028:0-

COMMAND=3593
3593>10
3593>10:00-

COMMAND=3593
3593>12
3593>12:15

COMMAND=A900
A900>0
A900>0:116-

Последние два транка вырезаны под Ethernet

Два транка выризаны со стороны НЕКа а с другой стороны?

SergeySPb пишет
Два транка выризаны со стороны НЕКа а с другой стороны?
И с другой стороны тоже.

Снимали трайс идут следующие ошибки " Message not compatible with call state"
" Temporary failure"
Прислали распечатку трэйса, но по обьёму он большой а расшифровать я его толком не могу.

Shark018 пишет
Снимали трайс идут следующие ошибки " Message not compatible with call state"
" Temporary failure"
Прислали распечатку трэйса, но по обьёму он большой а расшифровать я его толком не могу.

Нужно анализировать трейс, возможна не стыковка по протоколу с верней АТС, или ошибки при конвертации протоколов сигнализации по пути следования сообщения типа ВСК-ОКС-ЕДСС. Какая верхняя АТС? По поводу тишины в трубке, это точно на не рабочий В-канал попадает. Точно ли верхние заблокировали те тайм-слоты? Или может ваш мультиплексер вырезает не те тайм-слоты? Как вы выделяете каналы под ПД?

Верхняя АТС Nokia DX 200.
Инженеры котрые её обслуживают утверждают что у них вырезаны последние тайм слоты под ПД.
Они видят что все 28 тайм слотов под голос рабочие.
В IT-отделе обслуживающем мультиплексер утверждают что тоже последние тайм слоты вырезаны.
Могу выложить кусок трэйса где идут ошибки Может это как то прояснит ситуацию.

Shark018 пишет
Могу выложить кусок трэйса где идут ошибки Может это как то прояснит ситуацию.

Давай выкладывай.

Это первая часть.
07/04/06 14:26:41 Trace DSS1 (ETSI PRI) created by AnyTest 5.20.40830
>>>>>>>>>>>> RxB Ch 1 NEW CALL CR=256 4957870777->7999011 14:26:51-14:26:51
14:26:51.363 RxB Ch 1 SETUP
00 01 4C E2 08 02 01 00 05 04 03 80 90 A3 18 03 A9 83 81 1C 0C 91 A1 09 02 01 03 02 01 1E 0A 01
02 1E 02 81 83 6C 0C 21 80 34 39 35 37 38 37 30 37 37 37 70 08 81 37 39 39 39 30 31 31 7D 02 91
81
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 0....... Call reference flag........... From origination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 00000101 Message type.................. SETUP
-- Bearer capability
9 00000100 Information element ID........ Bearer capability
10 00000011 Length........................ 3 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... ITU-T
...00000 Info. transfer capability..... Speech
12 1....... Extension..................... Last octet
.00..... Transfer mode................. Circuit mode
...10000 Information transfer rate..... 64 kbit/s
13 1....... Extension..................... Last octet
.01..... Layer ID...................... Layer 1
...00011 User info. layer 1 protocol... Rec. G.711 A-law
-- Channel identification
14 00011000 Information element ID........ Channel identification
15 00000011 Length........................ 3 Dec
16 1....... Extension..................... Last octet
.0...... Interface ident. present...... Implicitly identified
..1..... Interface type................ Primary rate
...0.... Spare......................... 0 Dec
....1... Preferred/Exclusive........... Channel is exclusive
.....0.. D-channel indicator........... not D-channel
......01 Information channel selection. As indicated in following octets
17 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Number/map.................... Indicated by the number
....0011 Channel/map element type...... B-channel units
18 1....... Extension..................... Last octet
.00..... Spare......................... 0 Dec
...00001 Timeslot number............... 1 Dec
-- Progress indicator
33 00011110 Information element ID........ Progress indicator
34 00000010 Length........................ 2 Dec
35 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0001 Location...................... Private network serving the local user
36 1....... Extension..................... Last octet
.0000011 Progress description.......... Origination address is non ISDN
-- Calling party number
37 01101100 Information element ID........ Calling party number
38 00001100 Length........................ 12 Dec
39 0....... Extension..................... Continuation
.010.... Type of number................ National number
....0001 Numbering plan................ ISDN/telephony numbering plan
40 1....... Extension..................... Last octet
.00..... Presentation indicator........ Presentation allowed
...000.. Spare......................... 0 Dec
......00 Screening indicator........... User-provided, not screened
41 - 50 Address signal................ 4957870777
-- Called party number
51 01110000 Information element ID........ Called party number
52 00001000 Length........................ 8 Dec
53 1....... Extension..................... Last octet
.000.... Type of number................ Unknown
....0001 Numbering plan................ ISDN/telephony numbering plan
54 - 60 Address signal................ 7999011
-- High layer compatibility
61 01111101 Information element ID........ High layer compatibility
62 00000010 Length........................ 2 Dec
63 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...100.. Interpretation................ First high layer characteristics identification to be used in the call
......01 Presentation method........... High layer protocol profile
64 1....... Extension..................... Last octet
.0000001 High layer characteristics.... Telephony
14:26:51.374 RxA Ch 1 SETUP ACKNOWLEDGE
02 01 E2 4E 08 02 81 00 0D 18 03 A9 83 81
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 00001101 Message type.................. SETUP ACKNOWLEDGE
-- Channel identification
9 00011000 Information element ID........ Channel identification
10 00000011 Length........................ 3 Dec
11 1....... Extension..................... Last octet
.0...... Interface ident. present...... Implicitly identified
..1..... Interface type................ Primary rate
...0.... Spare......................... 0 Dec
....1... Preferred/Exclusive........... Channel is exclusive
.....0.. D-channel indicator........... not D-channel
......01 Information channel selection. As indicated in following octets
12 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Number/map.................... Indicated by the number
....0011 Channel/map element type...... B-channel units
13 1....... Extension..................... Last octet
.00..... Spare......................... 0 Dec
...00001 Timeslot number............... 1 Dec
14:26:51.380 RxA Ch 1 CALL PROCEEDING
02 01 E6 4E 08 02 81 00 02 18 03 A9 83 81
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 00000010 Message type.................. CALL PROCEEDING
-- Channel identification
9 00011000 Information element ID........ Channel identification
10 00000011 Length........................ 3 Dec
11 1....... Extension..................... Last octet
.0...... Interface ident. present...... Implicitly identified
..1..... Interface type................ Primary rate
...0.... Spare......................... 0 Dec
....1... Preferred/Exclusive........... Channel is exclusive
.....0.. D-channel indicator........... not D-channel
......01 Information channel selection. As indicated in following octets
12 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Number/map.................... Indicated by the number
....0011 Channel/map element type...... B-channel units
13 1....... Extension..................... Last octet
.00..... Spare......................... 0 Dec
...00001 Timeslot number............... 1 Dec

Это продолжение:
14:26:51.422 RxB Ch 1 STATUS
00 01 4E EA 08 02 01 00 7D 08 03 81 E2 62 14 01 02
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 0....... Call reference flag........... From origination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 01111101 Message type.................. STATUS
-- Cause
9 00001000 Information element ID........ Cause
10 00000011 Length........................ 3 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0001 Location...................... Private network serving the local user
12 1....... Extension..................... Last octet
.1100010 Cause value................... Message not compatible with call state or message type non-existent or not implemented
-- Call state
14 00010100 Information element ID........ Call state
15 00000001 Length........................ 1 Dec
16 00...... Coding standard............... CCITT
..000010 Call state value.............. N2 – Overlap sending
14:26:51.425 RxA Ch 1 STATUS ENQUIRY
02 01 EA 50 08 02 81 00 75
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 01110101 Message type.................. STATUS ENQUIRY
14:26:51.497 RxA Ch 1 ALERTING
02 01 EC 54 08 02 81 00 01 1E 02 85 82
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 00000001 Message type.................. ALERTING
-- Progress indicator
9 00011110 Information element ID........ Progress indicator
10 00000010 Length........................ 2 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0101 Location...................... Private network serving the remote user
12 1....... Extension..................... Last octet
.0000010 Progress description.......... Destination address is non ISDN
14:26:51.533 RxB Ch 1 STATUS
00 01 54 EE 08 02 01 00 7D 08 02 81 9E 14 01 03
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 0....... Call reference flag........... From origination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 01111101 Message type.................. STATUS
-- Cause
9 00001000 Information element ID........ Cause
10 00000010 Length........................ 2 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0001 Location...................... Private network serving the local user
12 1....... Extension..................... Last octet
.0011110 Cause value................... Response to STATUS ENQUIRY
-- Call state
13 00010100 Information element ID........ Call state
14 00000001 Length........................ 1 Dec
15 00...... Coding standard............... CCITT
..000011 Call state value.............. N3 – Outgoing call proceeding
14:26:51.544 RxA Ch 1 DISCONNECT
02 01 EE 56 08 02 81 00 45 08 02 82 E5
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 01000101 Message type.................. DISCONNECT
-- Cause
9 00001000 Information element ID........ Cause
10 00000010 Length........................ 2 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0010 Location...................... Public network serving the local user
12 1....... Extension..................... Last octet
.1100101 Cause value................... Message not compatible with call state
14:26:51.689 RxB Ch 1 RELEASE
00 01 56 F2 08 02 01 00 4D 08 02 81 90
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 0....... Call reference flag........... From origination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 01001101 Message type.................. RELEASE
-- Cause
9 00001000 Information element ID........ Cause
10 00000010 Length........................ 2 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0001 Location...................... Private network serving the local user
12 1....... Extension..................... Last octet
.0010000 Cause value................... Normal call clearing
14:26:51.694 RxA Ch 1 RELEASE COMPLETE
02 01 F2 58 08 02 81 00 5A
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0000001 Call reference value.......... See below
7 00000000 Call reference value.......... 0 Dec
8 01011010 Message type.................. RELEASE COMPLETE
<<<<<<<<<<<< RxB Ch 1 END CALL CR=256 4957870777->7999011 14:26:51-14:26:51

Это продолжение того же трэйса , но с другой ошибкой.
>>>>>>>>>>>> RxA Ch 25 NEW CALL CR=12348 84957870777->7999011 14:26:51-14:26:51
14:26:51.387 RxA Ch 25 SETUP
02 01 E8 4E 08 02 30 3C 05 04 03 80 90 A3 18 03 A9 83 9A 1E 02 85 83 6C 0D 01 81 38 34 39 35 37
38 37 30 37 37 37 70 08 C1 37 39 39 39 30 31 31 7D 02 91 81 A1
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 0....... Call reference flag........... From origination
.0110000 Call reference value.......... See below
7 00111100 Call reference value.......... 60 Dec
8 00000101 Message type.................. SETUP
-- Bearer capability
9 00000100 Information element ID........ Bearer capability
10 00000011 Length........................ 3 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... ITU-T
...00000 Info. transfer capability..... Speech
12 1....... Extension..................... Last octet
.00..... Transfer mode................. Circuit mode
...10000 Information transfer rate..... 64 kbit/s
13 1....... Extension..................... Last octet
.01..... Layer ID...................... Layer 1
...00011 User info. layer 1 protocol... Rec. G.711 A-law
-- Channel identification
14 00011000 Information element ID........ Channel identification
15 00000011 Length........................ 3 Dec
16 1....... Extension..................... Last octet
.0...... Interface ident. present...... Implicitly identified
..1..... Interface type................ Primary rate
...0.... Spare......................... 0 Dec
....1... Preferred/Exclusive........... Channel is exclusive
.....0.. D-channel indicator........... not D-channel
......01 Information channel selection. As indicated in following octets
17 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Number/map.................... Indicated by the number
....0011 Channel/map element type...... B-channel units
18 1....... Extension..................... Last octet
.00..... Spare......................... 0 Dec
...11010 Timeslot number............... 26 Dec
-- Progress indicator
19 00011110 Information element ID........ Progress indicator
20 00000010 Length........................ 2 Dec
21 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0101 Location...................... Private network serving the remote user
22 1....... Extension..................... Last octet
.0000011 Progress description.......... Origination address is non ISDN
-- Calling party number
23 01101100 Information element ID........ Calling party number
24 00001101 Length........................ 13 Dec
25 0....... Extension..................... Continuation
.000.... Type of number................ Unknown
....0001 Numbering plan................ ISDN/telephony numbering plan
26 1....... Extension..................... Last octet
.00..... Presentation indicator........ Presentation allowed
...000.. Spare......................... 0 Dec
......01 Screening indicator........... User-provided, verified and passed
27 - 37 Address signal................ 84957870777
-- Called party number
38 01110000 Information element ID........ Called party number
39 00001000 Length........................ 8 Dec
40 1....... Extension..................... Last octet
.100.... Type of number................ Subscriber number
....0001 Numbering plan................ ISDN/telephony numbering plan
41 - 47 Address signal................ 7999011
-- High layer compatibility
48 01111101 Information element ID........ High layer compatibility
49 00000010 Length........................ 2 Dec
50 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...100.. Interpretation................ First high layer characteristics identification to be used in the call
......01 Presentation method........... High layer protocol profile
51 1....... Extension..................... Last octet
.0000001 High layer characteristics.... Telephony
-- Sending complete
52 10100001 Information element ID........ Sending complete
14:26:51.476 RxB Ch 25 CALL PROCEEDING
00 01 50 EC 08 02 B0 3C 02 18 03 A9 83 9A
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0110000 Call reference value.......... See below
7 00111100 Call reference value.......... 60 Dec
8 00000010 Message type.................. CALL PROCEEDING
-- Channel identification
9 00011000 Information element ID........ Channel identification
10 00000011 Length........................ 3 Dec
11 1....... Extension..................... Last octet
.0...... Interface ident. present...... Implicitly identified
..1..... Interface type................ Primary rate
...0.... Spare......................... 0 Dec
....1... Preferred/Exclusive........... Channel is exclusive
.....0.. D-channel indicator........... not D-channel
......01 Information channel selection. As indicated in following octets
12 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Number/map.................... Indicated by the number
....0011 Channel/map element type...... B-channel units
13 1....... Extension..................... Last octet
.00..... Spare......................... 0 Dec
...11010 Timeslot number............... 26 Dec
14:26:51.492 RxB Ch 25 ALERTING
00 01 52 EC 08 02 B0 3C 01 1E 02 81 82
LAYER 2
LAYER 3
4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0110000 Call reference value.......... See below
7 00111100 Call reference value.......... 60 Dec
8 00000001 Message type.................. ALERTING
-- Progress indicator
9 00011110 Information element ID........ Progress indicator
10 00000010 Length........................ 2 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0001 Location...................... Private network serving the local user
12 1....... Extension..................... Last octet
.0000010 Progress description.......... Destination address is non ISDN
14:26:51.547 RxA Ch 25 DISCONNECT
02 01 F0 56 08 02 30 3C 45 08 02 84 A9
LAYER 2
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4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 0....... Call reference flag........... From origination
.0110000 Call reference value.......... See below
7 00111100 Call reference value.......... 60 Dec
8 01000101 Message type.................. DISCONNECT
-- Cause
9 00001000 Information element ID........ Cause
10 00000010 Length........................ 2 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0100 Location...................... Public network serving the remote user
12 1....... Extension..................... Last octet
.0101001 Cause value................... Temporary failure
14:26:51.713 RxB Ch 25 RELEASE
00 01 58 F4 08 02 B0 3C 4D 08 02 81 90
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4 00001000 Protocol discriminator........ User-network call control message
5 0000.... Filler........................ 0 Dec
....0010 Length of call reference value 2 Dec (15 Bit CRV)
6 1....... Call reference flag........... From destination
.0110000 Call reference value.......... See below
7 00111100 Call reference value.......... 60 Dec
8 01001101 Message type.................. RELEASE
-- Cause
9 00001000 Information element ID........ Cause
10 00000010 Length........................ 2 Dec
11 1....... Extension..................... Last octet
.00..... Coding standard............... CCITT
...0.... Spare......................... 0 Dec
....0001 Location...................... Private network serving the local user
12 1....... Extension..................... Last octet
.0010000 Cause value................... Normal call clearing
14:26:51.717 RxA Ch 25 RELEASE COMPLETE
02 01 F4 5A 08 02 30 3C 5A
LAYER 2
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