We use Cisco AS5300 with IOS (tm) 5300 Software (C5300-IS-M), Version 12.2(5)
Unfortunately, the remote VoIP gateway is not managed by us.
The voice call is ok but we have problem with fax transmission.
Our fax transmition is not reliable, sometimes it is successful but sometimes it fails in the middle of transmission.
Some captures of fax debugging are
Nov 30 22:33:03 WIB: 0:D:67569 1249853308 fr-entered (10ms)
Nov 30 22:33:04 WIB: 0:D:67569 1249854600 fr-msg-tx NSF
Nov 30 22:33:05 WIB: 0:D:67569 1249855770 fr-msg-tx CSI
Nov 30 22:33:05 WIB: 0:D:67569 1249855800 fr-msg-tx good crc, 39 bytes
Nov 30 22:33:06 WIB: %ISDN-6-DISCONNECT: Interface Serial0:1 disconnected from
0213922312 , call lasted 774 seconds
Nov 30 22:33:06 WIB: 0:D:67569 1249856520 fr-msg-tx DIS
Nov 30 22:33:06 WIB: 0:D:67569 1249856550 fr-msg-tx good crc, 23 bytes
Nov 30 22:33:16 WIB: 0:D:67569 1249866710 fr-end cause unknown 0x4
and:
Nov 30 22:37:30 WIB: 0:D:67575 1248211554 fr-entered (10ms)
Nov 30 22:37:32 WIB: 0:D:67575 1248212860 fr-msg-tx NSF
Nov 30 22:37:33 WIB: 0:D:67575 1248214030 fr-msg-tx CSI
Nov 30 22:37:33 WIB: 0:D:67575 1248214060 fr-msg-tx good crc, 39 bytes
Nov 30 22:37:34 WIB: 0:D:67575 1248214780 fr-msg-tx DIS
Nov 30 22:37:34 WIB: 0:D:67575 1248214810 fr-msg-tx good crc, 23 bytes
Nov 30 22:37:36 WIB: 0:D:67575 1248216960 fr-msg-det TSI
Nov 30 22:37:36 WIB: 0:D:67575 1248217710 fr-msg-det DCS
Nov 30 22:37:44 WIB: 0:D:67575 1248225700 fr-msg-tx CRP
Nov 30 22:37:46 WIB: 0:D:67575 1248227220 fr-msg-tx NSF
Nov 30 22:37:47 WIB: 0:D:67575 1248228310 fr-msg-tx good crc, 39 bytes
Nov 30 22:37:47 WIB: 0:D:67575 1248228390 fr-msg-tx CSI
Nov 30 22:37:48 WIB: 0:D:67575 1248229050 fr-msg-tx good crc, 23 bytes
Nov 30 22:37:48 WIB: 0:D:67575 1248229140 fr-msg-tx DIS
Nov 30 22:37:54 WIB: 0:D:67575 1248234890 fr-msg-det TSI
Nov 30 22:37:54 WIB: 0:D:67575 1248235640 fr-msg-det DCS
Nov 30 22:38:03 WIB: 0:D:67575 1248243750 fr-msg-tx DCN
Nov 30 22:38:05 WIB: 0:D:67575 1248245840 fr-end cause unknown 0x1
Nov 30 22:38:05 WIB: %ISDN-6-DISCONNECT: Interface Serial0:0 disconnected from
0213453018 , call lasted 79 seconds
Can someone help how to improve our fax transmition reliability?