Correct, it's FXS to BRI. We have used three fax machines to test the issue, the original fax is a Brother MFC8860, but we allso tested with a older (slower fax speed) machine, which resulted in the same "half page" problem.
I have now added the "modem passthrough nse codec g711ulaw" command.
I will contact our client in a few days to see if the issue is solved by then, if not i will add the "input gain -3" and the "output attenuation 5" commandos.
The IOS version now used is 12.4(11)XW7
If u want I can attach my show tech to this topic.
I have changed all the settings you gave in your last post.
input gain -3
output attenuation 5
I have allso upgraded the IOS to 12.4(24)T and the outgoing fax problem is solved. but now a incoming fax problem is created :) a lot of incoming faxes give a error report on the sending side so that the sending side keeps on resending the fax. Resulting in a lot of the same faxes on our faxing machine.
could it be that this is something with any kind of signaling that isn't terminated correctly, or does this echo settings are bit to strong?
Generally fax problems like this require much more information like packet captures and to listen to the audio stream.
Make sure you don't have any problems on your analog ports for normal voice calls, otherwise, you may have some provider problems. Maybe you want to try a less new IOS, something like 12.4(20)T3 which may have fewer unknown issues. That, or something like 12.4(15)T9
Ok, I will try another IOS asap and will keep you posted. If this doesn't help with the fax problem, could there be any hardware error on the FXS VWIC? I've tried 2 of the 4 ports now and this doesn't help a thing.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...