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 system reviewCurrent system review

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

Current telephone systemCurrent 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

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

Port cost comparisons

Current voice messagingCurrent voice messaging

ROLM PhoneMail v6.3– PC-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

Cost model implications (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 test bed– 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)

VM replacement issuesVM 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

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)

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 tasks

Next stepsNext 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

Deployment issuesDeployment issues

Time-frame?

Wrap-upWrap-up

NETS VoIP project pageCisco 7960 IP Phone tutorialQuestions?