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Voice over IP (VoIP) and Unified Messaging (UM) -- NETS testing update

Voice over IP (VoIP) and Unified Messaging (UM) -- NETS testing update. NCAB Presentation 19-Dec-2001 Jeff Custard Teresa Shibao Jim VanDyke. Current system review. 5 systems with over 2500 active ports (phones, trunks). Current Telephone system.

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Voice over IP (VoIP) and Unified Messaging (UM) -- NETS testing update

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  1. Voice over IP (VoIP) and Unified Messaging (UM) -- NETS testing update NCAB Presentation 19-Dec-2001 Jeff Custard Teresa Shibao Jim VanDyke

  2. Current system review • 5 systems with over 2500 active ports (phones, trunks)

  3. Current Telephone system • Siemens 9751 v6.4Components and software are proprietary • Redundant telephony processors at ML and FL only • Using “Classic” ROLMPhones from previous systems, some purchased w/original system in 1984

  4. Current System Life • Current PBXs scheduled replacement for FY‘04, ‘05, ‘06, and ‘07 • Next generation Traditional? • VoIP solution?Telephony vendor’s platforms are hybrid VoIP /traditional systems • Port cost comparisons

  5. Current Voice Messaging • ROLM PhoneMail v6.3386 33mhz processorsPC based systems • 1200 subscribers • Backups only save database tables, no messages/greetings • ML and FL purchased 1991, due for replacement this year

  6. VoIP section

  7. VoIP review

  8. Marshall Field Site (MFS) • 4 analog lines on FXS ports on a Cisco 3640 • 2 Cisco 7960 IP phone • 1 in data closet • 1 over MFS WLAN • Current diagram:

  9. Call Manager • Compaq Proliant DL380 server • Windows 2000 Server • Internet Information Server 5 • Cisco Call Manager

  10. VoIP vs. traditional PBX • What’s the difference?

  11. System Administration

  12. System Administration

  13. System Redundancy

  14. CM Admin demo

  15. IP Phones tested • 7910 (2x24 LCD display) “lobby phone” – can get with or without switch • 7935 (conference phone) – initial test results unsatisfactory • Will try again on ISDN PRI connection to see if perceived voice quality improves • SoftPhone • 7960 (6 line phone with larger LCD screen) • will soon be testing a 7914—14 line expansion module

  16. Data port on phone • Data port included on phone, keeps port count down • Cost model implications • Two VLANs—1 for data; 1 for voice • Demo this • 10/100 port; auto-negotiate or hard-set

  17. 7960 user interface • Basic interaction with phone menus • User configuration option on CM web page • Speed dial button updates • Password changes • Personal directory (links to this in next release of CM)

  18. CM user interface demo

  19. UM section

  20. VM replacement issues • Voice messaging scheduled for this year • Voice messaging only? • Unified messaging solution? • Most products currently on the market are Microsoft based. • Currently evaluating options; Unity is one potential candidate • Cost comparisons

  21. Unified Messaging (UM) – what is it? • “converged” email, voice, and fax messaging • email, voice and fax messages accessed from PC or telephone • text-to-speech module can read email over the phone • fax server allows centralized fax management • view, print, or forward via email client • browser-based personal administration • allows users to make their own customizations

  22. UM benefits: • centralized communications control • browser-based administration • decentralized routine administration • scalable, redundant, fault-tolerant system tools

  23. Cisco Unity overview: • Cisco Unity (formerly Active Voice) • Compaq Proliant DL380 server • Windows 2000 Server • Exchange 2000 mail store • SQL 2000 data store • Internet Information Server 5

  24. Cisco Unity: • Heavily reliant on Microsoft products (Windows 2000 server, Exchange 2000, SQL 2000 server, Outlook client, Internet Explorer for maintenance, etc.) • Would need to purchase anti-virus software for email server(s) • Would need to purchase backup software for server(s)

  25. Unity user interface overview • Basic voice-mail functionality (via the phone) • “Active Assistant” web interface to change phone mail options • Email send/receive for voice mail messages • Outlook available via Exchange web interface • Fax send/receive • LDAP server connectivity

  26. Unity admin overview • Web interface for most tasks

  27. Next steps • Install/test ISDN PRI T-1 • Digital lines between gateway and PBX will replace current E&M analog lines • Continued CM and UM testing • interaction with existing email servers • Continued QoS investigation/testing • Continued fax server testing

  28. lessons learned • FXS ports only “drive” (i.e., ring) one analog phone (with mechanical ringer) • Tweaked echo cancellation settings • Learned a lot about dial-peers and call-legs (VoIP call troubleshooting) • For better perceived voice quality, turn “Voice Activity Detection” (VAD) off • Serial connections are still annoying and pesky but we made them work • QoS testing • Early Field Test code is risky business!

  29. Deployment issues

  30. Wrap-up • NETS VoIP project page • Cisco 7960 IP Phone tutorial • Questions?

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