Hi, We have a problem that some incomings fax have many bad rows, from at least 2 different customer and therefore not all lines are readable. We tried first with to remove the ATA Device and changed that, that we receive them by mod_spandsp but the problem still exists. Attached the log file: Sender 1:https://pastebin.freeswitch.org/23960 <https://pastebin.freeswitch.org/23960> Sender 2: https://pastebin.freeswitch.org/23961 <https://pastebin.freeswitch.org/23961> FreeSWITCH version: 1.4.15+git~20141229T185951Z~507a0f22c5~64bit (git 507a0f2 2014-12-29 18:59:51Z 64bit) We use a patton ISDN/VoIP Gateway. Any hint how we can resolve/debug that? Thank you, Raphael