Hey community. I don't know why, but i can't write ino the german forums, so i try here for a little help. I tried to use the above mentioned Patton for connecting my FaxMachine (Brother) to 3CX hosted in the cloud. I know it is not supported. But we need PBX from the cloud and we need Fax. Something which does not go together in a supported was if we stay in 3CX. What i did. I added the Patton as described as an FXS/DECT device. I told it to use 2 Extensions. In this extension i disabled "Disallow use of extension outside the LAN" and "PBX Delivers Audio". My Provider (Deutsche Telefon Standrad AG) supports T38 and inbound Fax to 3CX Fax Server works. If i try to send a fax it starts dialing, but at some time the Fax Machine gives an error. (some beeps). Does anyone have a running configuration. I do not have some more ideas. Chris.