Canon PIXMA MX535 multifunction device

We have the power now for a few weeks in operation. It is used for private purposes. Scanner and printer are blameless and the print result can be quite impressive. Wireless high-speed printing with 3 PC is connected. The decor was not a problem in the end.
It could be better, the instructions for use of the fax. I have only one connection via the Internet / router, no ISDN connection Telekom and so it happens that the fax reception is interrupted when the phone rings normally and is lifted (the famous whistling). I have now resorted so that it gets to the fax, after about 35 seconds ringing.
Also, I rarely receive a fax and send the gibts no problems. I have purchased the product in the first line as a wireless printer. There is very good use as a printer for 95% Fax: 1% Scanning 4%