GlobeComSlideIndex.Tioga 1. Cover -- Title and whimsical picture 3. Circle/Slashes: phone, tobacco, alcohol, automobile 4. Telephone Tag 5. Interrupted ceremony 6. Fire Department 7. Scientists 8. Rabbit and hat -- no magic solution 9. File for rough edges 10. Toolbox with file in it -- integration 11. Overview slide a. Background b. Objectives c. Architecture d. Etherphone (TM) e. Summary 12. A little computing is a user-unfriendly thing 13. Photo of terminal 15. Cedar Screen 16. Call Placement 17. TDir Screen 18. Call Filtering 19. Filtering Screen 20. Leaving a Voice Message 21. Voice Message Composition Screen 22. Receiving a Voice Message 23. Voice Message Display/Playback Screen 24. Four Goals a. Tame Telephone b. Do it partly with recorded voice c. Use result to explore new capabilities d. Overall goal: Integration 25. Etherphone Architecture a. Ethernet control and voice transmission b. Etherphone processor c. Telephone Control Server {watch nomenclature} {brief verbal description} e. Voice File Server e. User Workstations (heterogeneous) f. Other network and workstation programs 26. Architecture picture from paper 27. Etherphone Processor a. Microprocessor control 28. Etherphone Processor, Voice Transmission b. Voice transmission i. Analog switching ii. Telephone line management {FCC Part 68 Requirements} iii. A to D/D to A iv. DES Encryption/Descryption v. Ethernet voice transmission vi. Digital gain control, silence detection, conference bridging 29. Etherphone Processor, Control and Auxiliary c. Control and auxiliary functions i. Ethernet communications with Server ii. Tone generation iii. Connection Management 30. Breadboard Photograph 31. Full System Photograph 32. Summary a. Work to date provides basics b. Ethernet voice works c. Architecture is flexible, resilient d. Already beats POTS e. Talk advertisement for paper f. Exciting times ahead 33. Too much filtering Cartoon ÊT˜J˜J˜JšÏbœ&˜'J˜6J˜Jšœ˜Jšœ˜J˜ J˜&J˜J˜*šœ˜J˜ J˜ J˜J˜J˜ —Jšœ/˜1J˜J˜Jšœ˜J˜Jšœ˜J˜Jšœ˜J˜$Jšœ˜J˜)šœ˜J˜J˜#J˜)J˜—šœ˜J˜*J˜J˜KJ˜J˜$J˜)—J˜#šœ˜J˜—šœ*˜,˜J˜J˜8J˜J˜J˜J˜@——šœ-˜/˜"J˜&J˜J˜——J˜J˜šœ ˜J˜J˜J˜&J˜J˜J˜—J˜˜J˜—˜J˜—J˜—…—ˆâ