asterisk users - Aug 2005 - Asterisk truncate my FAX !!!

Hi all,
i've a problem receiving faxes. I'm using AMP and i hope that all work
well
without big changes. However i've done some tests on .tif file created by 
asterisk and i've noticed that it truncates my fax almost after 5-6 seconds.
As results my pdf are corrupted and i receive a mail with empty pdf :-(

someone can help me ? 

Thanks !!! Oz

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