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

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

• NCAB Presentation
• 19-Dec-2001
• Jeff Custard
• Teresa Shibao
• Jim VanDyke

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Outline for todays presentation

• Current System
• Phone
• Voice Mail
• VoIP
• Review
• Compare current system to VoIP
• Messaging
• Review voice messaging and unified messaging
• Compare current VM to new VM/UM options
• Futures
• Deployment
• Remaining tests, etc.

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Review of current phone and voice mail system
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Current system review

• 5 systems with over 2500 active ports (phones,
  trunks)

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Current telephone system

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

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Current system life

• Current PBXs scheduled replacement for FY04,
  05, 06, and 07
• Next generation traditional?
• VoIP solution?Telephony vendors platforms are
  hybrid VoIP /traditional systems
• Port cost comparisons

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Current voice messaging

• ROLM PhoneMail v6.3
• PC-based systems
• 386/33mhz processors
• 1200 subscribers
• Backups only save database tables, no
  messages/greetings
• ML and FL purchased 1991, due for replacement
  this year

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Voice over IP (VoIP)
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VoIPreview
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Phone basics
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Data port on phone

• Data port included on phone, keeps port count
  down
• Cost model implications (changed physical
  infrastructure requirements)
• Two VLANs1 for data 1 for voice
• 10/100 port auto-negotiate or hard-set

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VoIP a typical migration
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Our deployed VoIP

• NETS test bed
• Cisco Call Manager
• Cisco Unity
• IP Phones
• PBX connectivity
• Marshall Field Site (MFS) production network

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Marshall Field Site (MFS)

• 4 analog lines on FXS ports on a Cisco 3640
• 2 Cisco 7960 IP phones
• 1 in data closet
• 1 over MFS WLAN
• Current diagram

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Lessons learned so far

• FXS ports only drive (i.e., ring) one analog
  phone (with mechanical ringer)
• Echo cancellation settings require some tweaking
• Weve learned a lot about dial-peers and
  call-legs (VoIP call troubleshooting)
• For better perceived voice quality, turned Voice
  Activity Detection (VAD) off
• QoS testing
• Early Field Test code is risky business!

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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 PBX connection to see
  if perceived voice quality improves
• Cisco Soft Phone
• 7960 (6 line phone with larger LCD screen)
• will soon be testing a 791414 line expansion
  module

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Call Manager

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

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VoIP vs. traditional PBX

• Whats the difference?

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System administration
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System administration
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System redundancy
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CM administration

• Done via web interface

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7960 user interface

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

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Phone feature comparisons
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Voice Mail (VM)andUnified Messaging (UM)
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VM replacement issues

• Voice messaging scheduled for this year
• Voice messaging only?
• Unified messaging solution?
• Most products currently on the market are
  Microsoft server based
• Currently evaluating options
• Cisco Unity is one potential candidate
• Cost comparisons

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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

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UM benefits

• Centralized communications control
• Browser-based administration
• Decentralized routine administration
• Scalable, redundant, fault-tolerant system tools

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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

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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)

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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 (not
  the same feature set as standard Outlook client)
• Fax send/receive
• LDAP server connectivity

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Unity admin overview

• Web interface for most tasks

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Next steps

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

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Deployment issues

• Time-frame?

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Wrap-up

• NETS VoIP project page
• Cisco 7960 IP Phone tutorial
• Questions?