Voice over IP (VoIP) and Unified Messaging (UM) -- NETS testing update
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Transcript of Voice over IP (VoIP) and Unified Messaging (UM) -- NETS testing update
Voice over IP (VoIP) and Voice over IP (VoIP) and Unified Messaging (UM) -- Unified Messaging (UM) --
NETS testing updateNETS testing update
NCAB Presentation19-Dec-2001
Jeff CustardTeresa ShibaoJim VanDyke
Outline for today’s presentationOutline for today’s 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.
Review of current phone and Review of current phone and voice mail systemvoice mail system
Current telephone systemCurrent telephone system
5 systems with over 2500 active ports (phones, trunks)
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
Current system lifeCurrent 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
Current voice messagingCurrent voice messaging
ROLM PhoneMail v6.3– PC/DOS-based systems– 386/33mhz processors
1200 subscribersBackups only save database tables,
no messages/greetingsML and FL purchased 1991, due for
replacement this year
Voice over IP (VoIP)Voice over IP (VoIP)
VoIPVoIPreviewreview
Phone basicsPhone basics
Data port on phone Data port on phone
Data port included on phone, keeps port count down
Changed physical infrastructure requirements
Two VLANs—1 for data; 1 for voice10/100 port; auto-negotiate or hard-
set
VoIP – a typical migrationVoIP – a typical migration
Our deployed VoIPOur deployed VoIP
NETS configuration– Cisco Call Manager– Cisco Unity– IP Phones– PBX connectivity
Marshall Field Site (MFS) production network
Marshall Field Site (MFS)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:
Lessons learned so farLessons learned so far
FXS ports only “drive” (i.e., ring) one analog phone (with mechanical ringer)
Echo cancellation settings require some tweaking We’ve 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!
IP phones testedIP 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 7914—14 line expansion
module
Call Manager Call Manager
Compaq Proliant DL380 serverWindows 2000 ServerInternet Information Server 5Cisco Call Manager software
VoIP vs. traditional PBXVoIP vs. traditional PBX
What’s the difference?
System administrationSystem administration
System administrationSystem administration
System redundancySystem redundancy
CM administrationCM administration
Done via web interface
7960 user interface7960 user interface
Basic interaction with phone menusUser configuration option on CM web
page– Speed dial button updates– Password changes– Service subscription– Personal directory (links to this in next
release of CM)
Phone feature comparisonsPhone feature comparisons
Voice Mail (VM)Voice Mail (VM)andand
Unified Messaging (UM)Unified Messaging (UM)
Unified Messaging (UM)Unified Messaging (UM) – what is it? – 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
UM benefits:UM benefits:
Centralized communications controlBrowser-based administrationDecentralized routine administrationScalable, redundant, fault-tolerant
system tools
Cisco Unity overviewCisco 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
Cisco UnityCisco 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)
Current vendor (Siemens) uses same setup
Unity user interface overviewUnity 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
Unity admin overviewUnity admin overview
Web interface for most tasksStandardized “digit interfaces”
coming– numbers used for various functions will
change
Next testing stepsNext testing steps
Install/test ISDN PRI T-1– Digital lines between gateway and PBX
will replace current E&M analog linesContinued CM and UM testing– interaction with existing email servers
Continued QoS investigation/testingContinued fax server testing
FutureFuture
“Proof of concept” complete Should we work toward a deployment
phase now?– Implies additional redundancy requirements
not present in our test bed Traditional PBX– “forklift” upgrade of everything at once
VoIP– Incremental upgrade as ready
FutureFuture
Various approval processes (for which options)?– Voice-mail only (already approved and
budgeted)?– Unified messaging?– Fax server?
If done separately now, may not merge well later—proceed now with unified solution?
What is the next step?
Wrap-upWrap-up
NETS VoIP project pageCisco 7960 IP Phone tutorialQuestions?