After a month in operation and switch to IP telephony, there were problems, set the device to receive faxes, because the manual support in this regard is very poor. It is not supported, as the unit is to be wired when you have a router with IP configuration. Nor is there any support which entries are to be made at the Faxeinstellung.ZB No. Entry: neither with regard to the code without and how have these problems as (+49 (0) area code without 0 and then No.?.). me already but ultimately disappointed.