1. ECE 477 Senior Design Group 3  Spring 2005 Paste a photo of team members with completed project here. Annotate this photo with names of team members. Ankur Trushal Ashish Dushyant “VoIP Connect”

2. Outline Project overviewProject overview Design challenges facedDesign challenges faced ECE 362 knowledge usedECE 362 knowledge used Project demoProject demo

3. Project Overview “VoIP Connect” is a Voice over IP Phone system“VoIP Connect” is a Voice over IP Phone system Keypad to dial to an IP addressKeypad to dial to an IP address Make calls over the InternetMake calls over the Internet –Analog Voice Signal Digitized –Sent over the net –Digital Signal converted to Analog Voice at receiver end Call status shown on LCDCall status shown on LCD

4. Design Challenge: Hardware Selection of Components Easy ImplementationEasy Implementation Less power consumptionLess power consumption Built-in features like ethernet moduleBuilt-in features like ethernet module

5. Design Challenge: Software Converting Analog Voice to Digital and vice- versaConverting Analog Voice to Digital and vice- versa Packetizing digital dataPacketizing digital data Creating a Handshaking Protocol between the 2 phonesCreating a Handshaking Protocol between the 2 phones

6. ECE 362 Knowledge Used Using the peripherals of microcontrollers Timer ChannelTimer Channel SPISPI ISRISR Interrupt driven softwareInterrupt driven software

7. Project Demo

8. Questions / Discussion