[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Sigtran] BICC codec
Dear Sigtran experts...
I'm trying to set the codecs in between 2 corresponden MSC and
Transit. let say the calls flow from MSC (originating) to PSTN (POI)
via Transit.
but somehow this communication from MSC-Transit for BICC are using G7.11 Alaw.
for some consideration, I want to change it using AMR 12.2, but
unfortunately it confusing because during this BICC message the APM
said codec list which are many codec listed there. I can't understand
which codec it is used.
Do you have some idea how to read the trace of which codec this APM
message used?
the trace in the attachment file.
thanks and regards,
leo
=== SIG PLANE ===
=== IP ===
45 IP_VERSION : 4 = IPv4, Internet Protocol
IHL : 5 = 20 Bytes
28 PRECEDENCE : 001..... = Priority.
DELAY : ...0.... = Normal delay.
THROUGHPUT : ....1... = High throughput.
RELIAB : .....0.. = Normal reliability.
MONE COST : ......0. = Normal monetary cost.
RESERVED : .......0
00 BC TOTAL_LENG : 188
A6 BB IDENTI : 42683
00 RESERVED : 0.......
DONOTFRAG : .0...... = Fragment if necessary.
MORE_FRAG : ..0..... = This is the last fragment.
00 FRAGOFFSET : 0 = 0 Bytes
3E TTL : 62
84 PROTOCOL : 132 = SCTP
17 3F CHECKSUM : 5951
79 34 64 20 SOURCE_IP : 79 34 64 20h = 121.52.100.32 / A
79 34 67 13 DESTN_IP : 79 34 67 13h = 121.52.103.19 / A
=== SCTP ===
0B 59 SOURCEPORT : 2905 = M3UA
0B 59 DEST PORT : 2905 = M3UA
00 01 B7 7E VER TAG : 112510
30 50 63 77 CHECKSUM : 30 50 63 77h
--- PAYLOAD ---
00 CHUNK TYPE : 0 = Payload
03 RESERVED : 00000...
U BIT : .....0.. = Ordered DATA chunk
B E BITS : ......11 = Unfragmented message
00 9C CHUNK LEN : 156
00 59 79 3E TSN : 5863742
00 28 STREAM ID : 40
6C C7 STR SEQ NO : 27847
00 00 00 03 PAYLOAD ID : 3 = M3UA
=== M3UA ===
01 VERSION : 1 = Release 1.0
00 RESERVED : 0
01 MSGCLASS : 1 = Transfer Messages
--- TRNSFERCLS ---
01 MSGTYPE : 01h = Payload Data(DATA)
00 00 00 8C MSG_LENGTH : 140
--- PAYLOADDAT ---
02 10 TAG : 0210h = Protocol Data
00 84 PARAM_LEN : 132
--- OPC ---
00 MASK : 0 = Last 0 bits of the PC are wildcarded
00 SPARE : 0
23 A4 OPC : 9124 = TSJK7_NAT0
--- DPC ---
00 MASK : 0 = Last 0 bits of the PC are wildcarded
00 SPARE : 0
23 B4 DPC : 9140 = MSBD4_NAT0
0D SI : 13 = Bearer Independent CallControl
02 NI : 2 = National network
00 MSG PRIO : 0
07 SLS : 7
=== BICC ===
07 00 00 00 CIC : 00000007h
41 MESSTYPE : 41h = APM
--- APM ---
01 OPT PTR : 1
38 PARAMETERS : 38h
01 LEN : 1
--- MSG COMP ---
90 TRANS IND : .......0 = transit interpretation
REL CAL IN : ......0. = do not release call
SEND NOTI : .....0.. = do not send notification
DISC MSG : ....0... = do not discard message (pass on)
PASS NO PO : ...1.... = discard information
BAND IND : .00..... = pass on
EXT BIT : 1.......
78 PARAMETERS : 78h
64 LEN : 100
--- APP TRANS ---
85 EXT : 1.......
APP CON ID : .0000101 = BAT ASE
81 EXT : 1.......
SPARE : .00000..
SNI : ......0. = do not send notification
RCI : .......1 = release call
C0 EXT : 1.......
SI : .1...... = New sequence
APM : ..000000 = final segments
00 S ADDR LEN : 0
00 D ADDR LEN : 0
01 IDENTIFIER : 01h = Action Indicator
82 EXT : 1.......
LENGTH : 2
83 INSTRU IND : ......11 = release call
SEND NOTIF : .....0.. = Do not sent notification
RESERVED : ....0...
INSTRU IND : ..00.... = Release call
SEND NOTIF : .0...... = Do not sent notification
EXT : 1.......
05 ACTION : 05h = connect forward, no nmotification + selected cedec
02 IDENTIFIER : 02h = Backbone Network Connection Identifier
85 EXT : 1.......
LENGTH : 5
91 INSTRU IND : ......01 = Discard information element
SEND NOTIF : .....0.. = Do not sent notification
RESERVED : ....0...
INSTRU IND : ..01.... = Discard information elemet
SEND NOTIF : .0...... = Do not sent notification
EXT : 1.......
00 00 70 34 BNC-ID : 00007034h
03 IDENTIFIER : 03h = Interworking Function Address
95 EXT : 1.......
LENGTH : 21
91 INSTRU IND : ......01 = Discard information element
SEND NOTIF : .....0.. = Do not sent notification
RESERVED : ....0...
INSTRU IND : ..01.... = Discard information elemet
SEND NOTIF : .0...... = Do not sent notification
EXT : 1.......
35 00 01 79 34 13 EA 00 00 00 00 00 00 00 00 00 00 00 00 00
BIWF Addr : 350001793413EA00000000000000000000000000h
0A IDENTIFIER : 0Ah = Bearer Control Unit Identifier
86 EXT : 1.......
LENGTH : 6
83 INSTRU IND : ......11 = release call
SEND NOTIF : .....0.. = Do not sent notification
RESERVED : ....0...
INSTRU IND : ..00.... = Release call
SEND NOTIF : .0...... = Do not sent notification
EXT : 1.......
00 LEN IND : 00000000b
6B 01 00 00 LOC BCU-ID : 6B010000h
04 IDENTIFIER : 04h = Codec List
AB EXT : 1.......
LENGTH : 43
91 INSTRU IND : ......01 = Discard information element
SEND NOTIF : .....0.. = Do not sent notification
RESERVED : ....0...
INSTRU IND : ..01.... = Discard information elemet
SEND NOTIF : .0...... = Do not sent notification
EXT : 1.......
05 ORG ID : 05h = reservwed for use by IMT-2000 family members
83 91 01 01 05 86 91 02 03 95 95 04 05 83 91 02 02 05 86 91 02 04 15 15 03 05 86 91 02 06 95 95 04
05 86 91 02 06 80 80 01
CODEC LIST : 83910101058691020395950405839102020586910204151503058691020695950405-
86910206808001h
05 IDENTIFIER : 05h = Single Codec
86 EXT : 1.......
LENGTH : 6
91 INSTRU IND : ......01 = Discard information element
SEND NOTIF : .....0.. = Do not sent notification
RESERVED : ....0...
INSTRU IND : ..01.... = Discard information elemet
SEND NOTIF : .0...... = Do not sent notification
EXT : 1.......
02 ORG ID : 02h = ETSI (refer to TS 26.103)
06 IDENTIFIER : 06h = BAT Compatibility Report
80 EXT : 1.......
LENGTH : 0
80 INSTRU IND : ......00 = Pass on information element
SEND NOTIF : .....0.. = Do not sent notification
RESERVED : ....0...
INSTRU IND : ..00.... = Release call
SEND NOTIF : .0...... = Do not sent notification
EXT : 1.......
01 REPOR RAES : 01h = information element non-existent or not implemented
39 IDENTIFIER : 39h = spare
02 78 INDEX : 7802h
83 IDENTIFIER : 83h = spare
=== DATA ===
00 DATA : 00h