1. UW IP Telephony Mary Mulvihill Manager, Customer Services Session Chair marymulv@u.washington.edu

2. Subject Matter Experts (SMEs)  Dennis Cook, Lead Network Engineer  dennisc@u.washington.edu  Brian Graves, Lead Network Engineer  bgraves@u.washington.edu  Jeremy Wu, Network Engineer  doctorwu@u.washington.edu  Lyle Zimmerman, Manager Infrastructure Planning & Design  lylez@u.washington.edu

3. Format  UW System Architecture (Dennis)  Trunking Overview (Brian)  IP Hardphone/Softphone (Jeremy)  Operations and Support (Jeremy & Brian)  [Cabling Infrastructure; Lyle available for questions]  QUESTIONS from our colleagues  Basic hands on demonstration

6. VoIP Hardphones

7. Centralized VoIP vs Skype

8. Why Use Centralized VoIP?  Use Processing Power of PBX  Better Quality  Less Delay  Receive and Make calls to non-Skype users.

9. Other Benefits of VoIP  Cabling  Data and Voice on one cable  PoE  Centralized power makes it easier to sustain during power disruptions  PBX Features  Voicemail, Caller ID, Call Centers

10. VoIP Softphones

11. What is Softphone  Most similar to Skype  Runs on your laptop or PC  Simulates a PBX station on your laptop.  Most of the benefits of Hardphone

12. Issues To Watch Out For  NAT Firewalls  PC/Laptop Processor Speed  Requires at least 1 GHz processor  Should not actively use other applications while on a call.  Good quality USB Headset

13. VoIP Monitoring

14. VoIP Monitoring Application  Application that shows historical and real- time information on problem VoIP calls.  Receives RTCP data from phones and PBX.  Three Main Thresholds  Packet Loss  Round Trip Time (RTT)  Jitter

15. What is Jitter?

16. PBX Troubleshooting  Can take a look at the phone from the PBX administration.  Status of Phone  Shows if online  Shows firmware  Shows RTP statistics

17. Questions? Thank you!