We are using a UC540 with 4x ISDN BRI lines. In the past we also used a seperate analog line for our fax. Recently we have conected our fax server to one of the analog ports on the UC540. Since then we have problems with incoming faxes. Untill now three different types of error messages with incoming faxes, see below for samples:
- "Reception error" "The remote fax machine did not respond in time, and the call was terminated." "0x40000802"
- "Reception error" "The incoming call cannot be answered as a fax call." "0x40000801"
- "Reception error" "Fax Reception error" "0x0000000c"
Incoming faxes are received via a fax modem connected to a Microsoft SBS2003 server. These errors did not occur while connected to the seperate analog line without interference of the UC540.
Is there a way to tune the UC540 so incoming faxes will be received correctly?