Abstract
A microcontroller-based enhanced telephone set designed and developed using the Inter-IC (I/sup 2/C) bus system is described. Besides functioning as a subscriber telephone, this feature phone incorporates a software-controlled ringer function, pulse and DTMF (dual-tone multifrequency) dialing, redial and extended redial features, direct dialing for emergencies, on-chip memory for 10 repertory dial numbers of 18 digits, direct access repertory dialing, and a liquid-crystal display.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
