Facsimile apparatus with cordless phone, a ring signal detection, an interface portion, a facsimile communication start signal detection and a first and second modes of operation

A facsimile apparatus comprising:

• a ring signal detection portion for detecting a ring signal from a telephone line;
• an interface portion for coupling said interface portion to said telephone line;
• a facsimile communication start signal detection portion responsive to said interface portion for detection a facsimile communication start signal;
• a facsimile portion, having a central processing unit having first and second modes, for effecting facsimile receiving and transmitting operations through said interface portion;
• a cordless phone portion, having a speech circuit for communicating with a cordless phone unit forming a first communication passage between said cordless phone unit and said telephone line through said interface portion through a radio wave signal in a non-extension line mode and forming a second communication passage between said cordless phone unit and said speech circuit through said radio wave signal in an extension line mode, said central processing unit executing said receiving and transmitting operations and generating an interference noise received by said cordless phone portion in the first mode and reducing the processing speed of said receiving and transmitting operations to reduce the generation of said interference noise received by said cordless phone portion in said second mode;
• and
• a control portion for making said central processing unit in said first mode and operating said facsimile portion when said facsimile portion is to be operated, for making said central processing unit in said second mode when said facsimile portion is not operated, and for operating said cordless phone portion in response to said detected ring signal, a first OFF-HOOK signal supplied thereto, and a second OFF-HOOK signal sent from said cordless unit to said cordless phone portion.