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UW IP Telephony

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

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UW IP Telephony

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  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

  4. VoIP Hardphones

  5. Centralized VoIP vs Skype

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

  7. 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

  8. VoIP Softphones

  9. 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

  10. 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

  11. VoIP Monitoring

  12. 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

  13. What is Jitter?

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

  15. Questions? Thank you!

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