UW IP Telephony

Mary Mulvihill

Manager, Customer Services

Session Chairmarymulv@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 doctorwu@u.washington.edu

Lyle Zimmerman, Manager Infrastructure Planning & Design lylez@u.washington.edu

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

VoIP Hardphones

Centralized VoIP vs Skype

Why Use Centralized VoIP?

Use Processing Power of PBX Better Quality Less Delay Receive and Make calls to non-Skype users.

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

VoIP Softphones

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

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

VoIP Monitoring

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

What is Jitter?

PBX Troubleshooting

Can take a look at the phone from the PBX administration.

Status of Phone Shows if online Shows firmware Shows RTP statistics

Questions?

Thank you!