Xerox WorkCentre Pro 555 Plain Paper Laser Fax "ring tone phone cuts" Questions

...RING BUT GOES TO ANSWERING MACHINE DOES NOT RECEIVE FAX >first run fax test, press set up go to tools menu then select run fax test,all entries should be pass >then check your connections, do ...

tone, with no static or cutting off. Use another phone and call to that phone, see if the phone answers and listen to it. Make sure there is no phone noise. Hang up, and dial to an other phone. See if

ring tone and I have to press the "button" connector to activate the ring tone before dialling. Can this problem be fixed or is the machine just getting too old? Sounds like contact trouble,