Don't know how to set for receiving phone calls...

Question

I have a Canon Super G3 all in one. I've read the manual but can't figure out how to set to receive phone calls and faxes. I use our local cable company for the telephone line. When I set to Fax/Tel I can't answer the phone. It rings on the machine but only briefly then I try to answer the call (I know it's not a fax) and the phone call doesn't come through.Can you help me please with detailed notes on settings.Thank you very much.Anne-Marie Freeman