Inbound and outbound calls using ITU ISUP intermachine trunks (IMTs) are working in Pakistan and Paraguay. Efforts are now focused on completing circuit maintenance procedures and features needed for releasing version 0.0.1 of the Signal/Media Gateway (SMG) which is anticipated to be in January 2006.
SMG Version 0.0.1 supports a single E1/T1 IMT controlled with a single SS7 F-link in both ITU and ANSI environments. Future releases will increase interoperability, functions, features, capacity, performance, and reliability. The SMG product roadmap is being developed and will be announced here and on the ss7box wiki.
Sunday, December 18, 2005
Friday, December 09, 2005
Inbound Calls on ITU SS7 IMT
We are beginning to get some success with inbound calls on an ITU SS7 inter-machine trunk on a Siemens switch in Pakistan. An inbound call is one that originates from the PSTN and terminates on the signal/media gateway (SMG). In the output below we see that a message code of 0x05 came in which is ignored. This is the switch requesting a continuity test which is not supported yet.
Some inbound calls are released by the switch because of "unavailable resources". This is probably a transient condition resulting from circuit group unblocking messages from the switch being ignored by the SMG. A remedy for this problem will be available shortly.
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x0 NI 0x2
dpc 3000 opc 4424 sls 10
MARK < >
-------------------------------------------------------------------------
0000 e2 f1 3f 85 b8 0b 52 a4 - 1a 00 01 18 20 01 0a 00 ..?...R..... ...
0010 02 09 07 03 90 24 02 40 - 99 f9 0a 07 83 11 24 02 .....$.@......$.
0020 90 10 08 31 02 00 be 3d - 01 1e a4 0e 03 02 00 00 ...1...=........
0030 03 a4 20 00 05 38 38 85 - 10 74 1d 03 80 90 a3 39 .. ..88..t.....9
0040 06 a4 c0 31 c0 3d c0 00 - 5b a9 ...1.=..[.
-------------------------------------------------------------------------
--------> rmt addr: 127.0.0.43 rmt port: 50220
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:88:1
I:sb_sg_sm.c:discrim_sgw_msg:MARK:0
I:sb_sg_sm.c:handle_m3ua_x4_msg:MARK:0
I:sb_sprc.c:sprc_inbound:MARK:0
I:msu_decode.c:msu_decode:MARK:0
I:msu_decode.c:handle_m3ua_isup_transfer_msg:MARK:0
CIC: 26
MSG TYPE: IAM
NATURE OF CONNECTION INDICATORS:
SATELLITE INDICATOR: 0x00
CONTINUITY CHECK INDICATOR: 0x02
ECHO CONTROL DEVICE INDICATOR: 0x01
FORWARD CALL INDICATORS:
INCOMING INTL CALL IND: 0x00
END TO END METHOD IND: 0x00
INTERWORKING IND: 0x00
END-TO-END INFORMATION IND: 0x00
ISDN USER_PART IND: 0x01
ISDN USER_PART PREFERENCE IND: 0x00
ISDN ACCESS IND: 0x01
SCCP METHOD IND: 0x00
SPARE: 0x00
RESERVED: 0x00
CALLING PARTY CATEGORY: 0x0a
TRANSMISSION MEDIUM REQUIREMENT: 0x00 (TMR interpretation not coded yet)
MANDATORY VLP:
NAME: CALLED PARTY NUMBER
LENGTH: 7
OCTET 0: 0x03
OCTET 1: 0x90
OCTET 2: 0x24
OCTET 3: 0x02
OCTET 4: 0x40
OCTET 5: 0x99
OCTET 6: 0xf9
---CdPA/CgPA DECODE---
NUMBER OF DIALED DIGITS: 10
NATURE OF ADDRESS INDICATOR: 0x03
SCREENING INDICATOR: 0x00
ADDRESS PRESENTATION INDICATOR: 0x00
NUMBERING PLAN: 0x01
DIALED DIGITS: 42200499915
OPTIONAL PARAMETERS - BEGIN
OPTIONAL VLP:
NAME VALUE: 0x0a - CALLING PARTY ADDRESS
LENGTH: 7
OCTET 0: 0x83
OCTET 1: 0x11
OCTET 2: 0x24
OCTET 3: 0x02
OCTET 4: 0x90
OCTET 5: 0x10
OCTET 6: 0x08
---CdPA/CgPA DECODE---
NUMBER OF DIALED DIGITS: 9
NATURE OF ADDRESS INDICATOR: 0x03
SCREENING INDICATOR: 0x01
ADDRESS PRESENTATION INDICATOR: 0x00
NUMBERING PLAN: 0x01
DIALED DIGITS: 422009018
OPTIONAL VLP:
NAME VALUE: 0x31 - PROPAGATION DELAY COUNTER
LENGTH: 2
OCTET 0: 0x00
OCTET 1: 0xbe
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0x3d - HOP COUNTER
LENGTH: 1
OCTET 0: 0x1e
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0xa4 - (parm name string not defined)
LENGTH: 14
OCTET 0: 0x03
OCTET 1: 0x02
OCTET 2: 0x00
OCTET 3: 0x00
OCTET 4: 0x03
OCTET 5: 0xa4
OCTET 6: 0x20
OCTET 7: 0x00
OCTET 8: 0x05
OCTET 9: 0x38
OCTET 10: 0x38
OCTET 11: 0x85
OCTET 12: 0x10
OCTET 13: 0x74
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0x1d - (parm name string not defined)
LENGTH: 3
OCTET 0: 0x80
OCTET 1: 0x90
OCTET 2: 0xa3
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0x39 - PARAMETER COMPATIBILITY INFORMATION
LENGTH: 6
OCTET 0: 0xa4
OCTET 1: 0xc0
OCTET 2: 0x31
OCTET 3: 0xc0
OCTET 4: 0x3d
OCTET 5: 0xc0
(No decode for this ISUP parameter)
OPTIONAL PARAMETERS - END
I:sb_toolbox.c:find_trunk_group:MARK:0
tg 0
I:sb_toolbox.c:convert_cic_to_span_chan:MARK:0
cic 26 cic_base 1 ncic 25 span 0 chan 26
I:sb_sg_cpc.c:sg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 5 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_sg_cpc.c:sg_cpc_idle:MARK:0
I:sb_send_sigboost.c:send_call_start_to_mg:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_send_isup.c:send_acm_to_ss7box:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:isup_event.c:send_canned_acm:MARK:0
Message from A/S, vlph_len 22 asmlen 6
0x1a 0x00 0x06 0x14 0x10 0x00
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x1 NI 0x2
dpc 4424 opc 3000 sls 4
MARK < >
-------------------------------------------------------------------------
0000 e2 f1 3f 95 48 11 ee 42 - 1a 00 06 14 10 00 0a 00 ..?.H..B........
-------------------------------------------------------------------------
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:96:131
I:sb_mg_sm.c:discrim_mgw_msg:MARK:0
I:sb_mg_cpc.c:mg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_mg_cpc.c:mg_cpc_inb_wait_ans:MARK:0
I:sb_send_isup.c:send_ans_to_ss7box:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:isup_event.c:send_canned_ans:MARK:0
Message from A/S, vlph_len 20 asmlen 4
0x1a 0x00 0x09 0x00
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x1 NI 0x2
dpc 4424 opc 3000 sls 4
MARK < >
-------------------------------------------------------------------------
0000 e2 f1 3f 95 48 11 ee 42 - 1a 00 09 00 10 00 ..?.H..B......
-------------------------------------------------------------------------
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x0 NI 0x2
dpc 3000 opc 4424 sls 10
MARK < >
-------------------------------------------------------------------------
0000 e3 f2 09 85 b8 0b 52 a4 - 1a 00 05 01 9b 23 ......R......#
-------------------------------------------------------------------------
--------> rmt addr: 127.0.0.43 rmt port: 50220
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:28:1
I:sb_sg_sm.c:discrim_sgw_msg:MARK:0
I:sb_sg_sm.c:handle_m3ua_x4_msg:MARK:0
I:sb_sprc.c:sprc_inbound:MARK:0
I:msu_decode.c:msu_decode:MARK:0
I:msu_decode.c:handle_m3ua_isup_transfer_msg:MARK:0
CIC: 26
MSG TYPE: 0x05 (print decode for this message type not developed yet)
W:msu_decode.c:handle_m3ua_isup_transfer_msg:ISUP message type not decodable yet:msg type follows:5
W:sb_sprc.c:sprc_inbound:msu_decode failed: ignore following value:0
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:96:132
I:sb_mg_sm.c:discrim_mgw_msg:MARK:0
I:sb_mg_cpc.c:mg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_mg_cpc.c:mg_cpc_inb_icc_answered:MARK:0
I:sb_send_isup.c:send_rel_to_ss7box:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:isup_event.c:send_canned_rel:MARK:0
Message from A/S, vlph_len 21 asmlen 5
0x1a 0x00 0x0c 0x02 0x00
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x1 NI 0x2
dpc 4424 opc 3000 sls 4
MARK < >
-------------------------------------------------------------------------
0000 e3 f2 09 95 48 11 ee 42 - 1a 00 0c 02 00 23 0a ....H..B.....#.
-------------------------------------------------------------------------
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x0 NI 0x2
dpc 3000 opc 4424 sls 10
MARK < >
-------------------------------------------------------------------------
0000 e5 f3 09 85 b8 0b 52 a4 - 1a 00 10 00 67 8b ......R.....g.
-------------------------------------------------------------------------
--------> rmt addr: 127.0.0.43 rmt port: 50220
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:28:1
I:sb_sg_sm.c:discrim_sgw_msg:MARK:0
I:sb_sg_sm.c:handle_m3ua_x4_msg:MARK:0
I:sb_sprc.c:sprc_inbound:MARK:0
I:msu_decode.c:msu_decode:MARK:0
I:msu_decode.c:handle_m3ua_isup_transfer_msg:MARK:0
CIC: 26
MSG TYPE: RLC
I:sb_toolbox.c:find_trunk_group:MARK:0
tg 0
I:sb_toolbox.c:convert_cic_to_span_chan:MARK:0
cic 26 cic_base 1 ncic 25 span 0 chan 26
I:sb_sg_cpc.c:sg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_sg_cpc.c:sg_cpc_inb_wait_rlc:MARK:0
Some inbound calls are released by the switch because of "unavailable resources". This is probably a transient condition resulting from circuit group unblocking messages from the switch being ignored by the SMG. A remedy for this problem will be available shortly.
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x0 NI 0x2
dpc 3000 opc 4424 sls 10
MARK < >
-------------------------------------------------------------------------
0000 e2 f1 3f 85 b8 0b 52 a4 - 1a 00 01 18 20 01 0a 00 ..?...R..... ...
0010 02 09 07 03 90 24 02 40 - 99 f9 0a 07 83 11 24 02 .....$.@......$.
0020 90 10 08 31 02 00 be 3d - 01 1e a4 0e 03 02 00 00 ...1...=........
0030 03 a4 20 00 05 38 38 85 - 10 74 1d 03 80 90 a3 39 .. ..88..t.....9
0040 06 a4 c0 31 c0 3d c0 00 - 5b a9 ...1.=..[.
-------------------------------------------------------------------------
--------> rmt addr: 127.0.0.43 rmt port: 50220
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:88:1
I:sb_sg_sm.c:discrim_sgw_msg:MARK:0
I:sb_sg_sm.c:handle_m3ua_x4_msg:MARK:0
I:sb_sprc.c:sprc_inbound:MARK:0
I:msu_decode.c:msu_decode:MARK:0
I:msu_decode.c:handle_m3ua_isup_transfer_msg:MARK:0
CIC: 26
MSG TYPE: IAM
NATURE OF CONNECTION INDICATORS:
SATELLITE INDICATOR: 0x00
CONTINUITY CHECK INDICATOR: 0x02
ECHO CONTROL DEVICE INDICATOR: 0x01
FORWARD CALL INDICATORS:
INCOMING INTL CALL IND: 0x00
END TO END METHOD IND: 0x00
INTERWORKING IND: 0x00
END-TO-END INFORMATION IND: 0x00
ISDN USER_PART IND: 0x01
ISDN USER_PART PREFERENCE IND: 0x00
ISDN ACCESS IND: 0x01
SCCP METHOD IND: 0x00
SPARE: 0x00
RESERVED: 0x00
CALLING PARTY CATEGORY: 0x0a
TRANSMISSION MEDIUM REQUIREMENT: 0x00 (TMR interpretation not coded yet)
MANDATORY VLP:
NAME: CALLED PARTY NUMBER
LENGTH: 7
OCTET 0: 0x03
OCTET 1: 0x90
OCTET 2: 0x24
OCTET 3: 0x02
OCTET 4: 0x40
OCTET 5: 0x99
OCTET 6: 0xf9
---CdPA/CgPA DECODE---
NUMBER OF DIALED DIGITS: 10
NATURE OF ADDRESS INDICATOR: 0x03
SCREENING INDICATOR: 0x00
ADDRESS PRESENTATION INDICATOR: 0x00
NUMBERING PLAN: 0x01
DIALED DIGITS: 42200499915
OPTIONAL PARAMETERS - BEGIN
OPTIONAL VLP:
NAME VALUE: 0x0a - CALLING PARTY ADDRESS
LENGTH: 7
OCTET 0: 0x83
OCTET 1: 0x11
OCTET 2: 0x24
OCTET 3: 0x02
OCTET 4: 0x90
OCTET 5: 0x10
OCTET 6: 0x08
---CdPA/CgPA DECODE---
NUMBER OF DIALED DIGITS: 9
NATURE OF ADDRESS INDICATOR: 0x03
SCREENING INDICATOR: 0x01
ADDRESS PRESENTATION INDICATOR: 0x00
NUMBERING PLAN: 0x01
DIALED DIGITS: 422009018
OPTIONAL VLP:
NAME VALUE: 0x31 - PROPAGATION DELAY COUNTER
LENGTH: 2
OCTET 0: 0x00
OCTET 1: 0xbe
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0x3d - HOP COUNTER
LENGTH: 1
OCTET 0: 0x1e
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0xa4 - (parm name string not defined)
LENGTH: 14
OCTET 0: 0x03
OCTET 1: 0x02
OCTET 2: 0x00
OCTET 3: 0x00
OCTET 4: 0x03
OCTET 5: 0xa4
OCTET 6: 0x20
OCTET 7: 0x00
OCTET 8: 0x05
OCTET 9: 0x38
OCTET 10: 0x38
OCTET 11: 0x85
OCTET 12: 0x10
OCTET 13: 0x74
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0x1d - (parm name string not defined)
LENGTH: 3
OCTET 0: 0x80
OCTET 1: 0x90
OCTET 2: 0xa3
(No decode for this ISUP parameter)
OPTIONAL VLP:
NAME VALUE: 0x39 - PARAMETER COMPATIBILITY INFORMATION
LENGTH: 6
OCTET 0: 0xa4
OCTET 1: 0xc0
OCTET 2: 0x31
OCTET 3: 0xc0
OCTET 4: 0x3d
OCTET 5: 0xc0
(No decode for this ISUP parameter)
OPTIONAL PARAMETERS - END
I:sb_toolbox.c:find_trunk_group:MARK:0
tg 0
I:sb_toolbox.c:convert_cic_to_span_chan:MARK:0
cic 26 cic_base 1 ncic 25 span 0 chan 26
I:sb_sg_cpc.c:sg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 5 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_sg_cpc.c:sg_cpc_idle:MARK:0
I:sb_send_sigboost.c:send_call_start_to_mg:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_send_isup.c:send_acm_to_ss7box:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:isup_event.c:send_canned_acm:MARK:0
Message from A/S, vlph_len 22 asmlen 6
0x1a 0x00 0x06 0x14 0x10 0x00
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x1 NI 0x2
dpc 4424 opc 3000 sls 4
MARK < >
-------------------------------------------------------------------------
0000 e2 f1 3f 95 48 11 ee 42 - 1a 00 06 14 10 00 0a 00 ..?.H..B........
-------------------------------------------------------------------------
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:96:131
I:sb_mg_sm.c:discrim_mgw_msg:MARK:0
I:sb_mg_cpc.c:mg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_mg_cpc.c:mg_cpc_inb_wait_ans:MARK:0
I:sb_send_isup.c:send_ans_to_ss7box:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:isup_event.c:send_canned_ans:MARK:0
Message from A/S, vlph_len 20 asmlen 4
0x1a 0x00 0x09 0x00
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x1 NI 0x2
dpc 4424 opc 3000 sls 4
MARK < >
-------------------------------------------------------------------------
0000 e2 f1 3f 95 48 11 ee 42 - 1a 00 09 00 10 00 ..?.H..B......
-------------------------------------------------------------------------
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x0 NI 0x2
dpc 3000 opc 4424 sls 10
MARK < >
-------------------------------------------------------------------------
0000 e3 f2 09 85 b8 0b 52 a4 - 1a 00 05 01 9b 23 ......R......#
-------------------------------------------------------------------------
--------> rmt addr: 127.0.0.43 rmt port: 50220
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:28:1
I:sb_sg_sm.c:discrim_sgw_msg:MARK:0
I:sb_sg_sm.c:handle_m3ua_x4_msg:MARK:0
I:sb_sprc.c:sprc_inbound:MARK:0
I:msu_decode.c:msu_decode:MARK:0
I:msu_decode.c:handle_m3ua_isup_transfer_msg:MARK:0
CIC: 26
MSG TYPE: 0x05 (print decode for this message type not developed yet)
W:msu_decode.c:handle_m3ua_isup_transfer_msg:ISUP message type not decodable yet:msg type follows:5
W:sb_sprc.c:sprc_inbound:msu_decode failed: ignore following value:0
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:96:132
I:sb_mg_sm.c:discrim_mgw_msg:MARK:0
I:sb_mg_cpc.c:mg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_mg_cpc.c:mg_cpc_inb_icc_answered:MARK:0
I:sb_send_isup.c:send_rel_to_ss7box:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:isup_event.c:send_canned_rel:MARK:0
Message from A/S, vlph_len 21 asmlen 5
0x1a 0x00 0x0c 0x02 0x00
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x1 NI 0x2
dpc 4424 opc 3000 sls 4
MARK < >
-------------------------------------------------------------------------
0000 e3 f2 09 95 48 11 ee 42 - 1a 00 0c 02 00 23 0a ....H..B.....#.
-------------------------------------------------------------------------
S:mtp3_smh.c:print_msu:
SI 0x05 PRIO 0x0 NI 0x2
dpc 3000 opc 4424 sls 10
MARK < >
-------------------------------------------------------------------------
0000 e5 f3 09 85 b8 0b 52 a4 - 1a 00 10 00 67 8b ......R.....g.
-------------------------------------------------------------------------
--------> rmt addr: 127.0.0.43 rmt port: 50220
I:../common/udp_sockets.c:check_udp_socket:received a msg:length/function follow:28:1
I:sb_sg_sm.c:discrim_sgw_msg:MARK:0
I:sb_sg_sm.c:handle_m3ua_x4_msg:MARK:0
I:sb_sprc.c:sprc_inbound:MARK:0
I:msu_decode.c:msu_decode:MARK:0
I:msu_decode.c:handle_m3ua_isup_transfer_msg:MARK:0
CIC: 26
MSG TYPE: RLC
I:sb_toolbox.c:find_trunk_group:MARK:0
tg 0
I:sb_toolbox.c:convert_cic_to_span_chan:MARK:0
cic 26 cic_base 1 ncic 25 span 0 chan 26
I:sb_sg_cpc.c:sg_cpc:MARK:0
I:span 0 chan 26 tg 0 cic 26 sls 4 nd 10 cld 422004999? ng 9 clg 422009018 spc 3000 imt_pc 4424
I:sb_sg_cpc.c:sg_cpc_inb_wait_rlc:MARK:0
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