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Issue with the FAX machine

Hello Folks,

Good Day !

Here we have an issue with the FAX machine which is configured in CUCM 8.5, physically located at Thailand ( On net DN 3083701, PSTN DN +822 344 03701 ). When we call this number either external or local we are getting busy tone... and the debugging logs are quite different in voice gateway.

Logs

When we call to +822 344 03701 we are getting this logs, We want to know why our voice gateway setting up the call 3 times or more than 3 times... Its strange.... Please let me know if you need any other logs from my end... :-)

Jun 27 20:57:56: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03F3

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9838B

                Exclusive, Channel 11

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2183, '00213133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:57:56: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83F3

        Channel ID i = 0xA9838B

                Exclusive, Channel 11

Jun 27 20:57:56: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83F3

        Cause i = 0x8091 - User busy

Jun 27 20:57:57: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03F3

Jun 27 20:57:57: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83F3

Jun 27 20:58:03: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03F4

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9838C

                Exclusive, Channel 12

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2181, '00113133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:58:03: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83F4

        Channel ID i = 0xA9838C

                Exclusive, Channel 12

Jun 27 20:58:03: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83F4

        Cause i = 0x8091 - User busy

Jun 27 20:58:03: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03F4

Jun 27 20:58:03: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83F4

Jun 27 20:58:03: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03F5

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9838D

                Exclusive, Channel 13

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2181, '00113133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:58:04: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83F5

        Channel ID i = 0xA9838D

                Exclusive, Channel 13

Jun 27 20:58:04: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83F5

        Cause i = 0x8091 - User busy

Jun 27 20:58:04: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03F5

Jun 27 20:58:04: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83F5

Jun 27 20:58:05: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03F6

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9838E

                Exclusive, Channel 14

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2181, '00113133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83F6

        Channel ID i = 0xA9838E

                Exclusive, Channel 14

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83F6

        Cause i = 0x8091 - User busy

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03F6

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03F7

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9838F

                Exclusive, Channel 15

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2181, '00113133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83F6

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83F7

        Channel ID i = 0xA9838F

                Exclusive, Channel 15

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83F7

        Cause i = 0x8091 - User busy

Jun 27 20:58:06: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03F7

Jun 27 20:58:07: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83F7

Jun 27 20:58:09: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03F9

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA98391

                Exclusive, Channel 17

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2183, '00213133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:58:09: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83F9

        Channel ID i = 0xA98391

                Exclusive, Channel 17

Jun 27 20:58:09: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83F9

        Cause i = 0x8091 - User busy

Jun 27 20:58:09: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03F9

Jun 27 20:58:09: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83F9

Jun 27 20:58:11: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03FA

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA98392

                Exclusive, Channel 18

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2181, '00113133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83FA

        Channel ID i = 0xA98392

                Exclusive, Channel 18

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83FA

        Cause i = 0x8091 - User busy

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03FA

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03FB

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA98393

                Exclusive, Channel 19

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2181, '00113133221121'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83FA

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83FB

        Channel ID i = 0xA98393

                Exclusive, Channel 19

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83FB

        Cause i = 0x8091 - User busy

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03FB

Jun 27 20:58:12: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83FB

When we call to +822 344 03701 from our cell phone 919600054666

Jun 27 21:00:48: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03FC

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA98394

                Exclusive, Channel 20

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2183, '001919600054666'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83FC

        Channel ID i = 0xA98394

                Exclusive, Channel 20

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83FC

        Cause i = 0x8091 - User busy

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03FC

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x03FD

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA98395

                Exclusive, Channel 21

        Progress Ind i = 0x8088 - In-band info or appropriate now available 

        Calling Party Number i = 0x2183, '001919600054666'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '3701'

                Plan:ISDN, Type:National

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83FC

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x83FD

        Channel ID i = 0xA98395

                Exclusive, Channel 21

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x83FD

        Cause i = 0x8091 - User busy

Jun 27 21:00:49: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x03FD

Jun 27 21:00:50: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x83FD

  • IP Telephony
Everyone's tags (2)
2 REPLIES

Issue with the FAX machine

The call is being attempted mutliple times from the gateway because it's receiving multiple SETUP messages from the PSTN. There's nothing wrong with the gateway.

As to why the PSTN would try an engaged number multiple times, I don't know. One vague possibility, is that maybe someone's setup a callback-type service on the number. But you'd probably need to talk to your PSTN provider. (You usually can't get this on ISDN type circuits, so maybe someone/thing is faking it by re-dialling frequently)

GTG

Please rate all helpful posts.

Issue with the FAX machine

Hi Raja,

This seems to be a port issue, connect the fax machine to a working port and check.

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