Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

fax problem

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?

  • Other Collaboration Voice and Video Subjects
1 REPLY
Anonymous
N/A

Re: fax problem

Assuming you're doing fax-relay.

Make sure the controller is clean, there's no slips and error seconds.

Try disable ecm on the gateway by configuring: fax-relay ecm disable

check the voip network for jitter and packet losses.

185
Views
0
Helpful
1
Replies