Remote initiation of communications for control of multiple appliances by telephone line

摘要

To control multiple electronic devices in homes and other buildings through telephone lines, a user may establish communication by utilizing Caller ID supplied by a local telephone service supplier and, where such Caller ID service is unavailable, user generated Caller ID tones and simultaneous FAX pilot tones and data transmission, to signal to a device to be controlled or to a receiving station that instructions are received and communication is required.