Single chip telephone answering machine, telephone, speakerphone, and ADSI controller

An integrated telephone controller for coupling a telephone to a telephone network and providing a digital answering machine adapted for storing a compressed digital outgoing message and one or more compressed digital incoming messages, the telephone network communicating electrical signals including incoming electrical signals and outgoing electrical signals, said telephone having microphone means including a handset microphone for converting audible input to said outgoing electrical signals and speaker means including a handset earpiece for converting said incoming electrical signals to an audible output, said telephone including memory means having a multiple-bit port, said memory means for storing said compressed digital outgoing message and said one or more compressed digital incoming messages, the integrated telephone controller comprising:

• telephone network interface means for coupling the telephone controller to said telephone network, said telephone network interface means including telephone network receiver means coupled to said telephone network for receiving said incoming electrical signals from said telephone network and telephone network transmitter means coupled to said telephone network for transmitting said outgoing electrical signals to said telephone network;
• handset interface means including earpiece driver means coupled between said telephone network receiver means and said handset earpiece for conveying said incoming electrical signals to said handset earpiece, and handset microphone receiver means coupled between said handset microphone and said telephone network transmitter means for conveying said outgoing electrical signals to said telephone network transmitter means;
• a processor including first analog to digital converter means coupled to said telephone network receiver means for receiving said incoming electrical signals from said telephone network receiver means and converting said incoming electrical signals to digital incoming signals, a digital signal processor including compression means for compressing said digital incoming signals to produce compressed digital incoming signals and decompression means for decompressing compressed digital outgoing signals to produce digital outgoing signals, and first digital to analog converter means coupled between said digital signal processor and said telephone network transmitter means for converting said digital outgoing signals to said outgoing electrical signals and conveying said outgoing electrical signals to said telephone network transmitter means, said processor having a multiple-bit port for receiving said compressed digital incoming signals and for transmitting said compressed digital outgoing signals;
• control means including memory interface means having a multiple-bit port coupled to said processor multiple-bit port, said memory interface means for receiving said compressed digital incoming signals, combining said compressed digital incoming signals to form said one or more compressed digital incoming messages and storing said one or more compressed digital incoming messages in said memory means, and receiving said compressed digital outgoing message from said memory means, forming said compressed digital outgoing signals from said compressed digital outgoing message, and conveying said compressed digital outgoing signals to said processor;
• and
• bus means coupled to said processor multiple-bit port and said memory interface means multiple-bit port for coupling said control means and said processor;
• said telephone network interface means, said handset interface means, said processor, said control means and said bus means are integrated in a single integrated circuit.