Voice over IP (VoIP) and Unified Messaging (UM) -- NETS testing update SCD Exec Presentation 12-Feb-2002 Jeff Custard Teresa Shibao Jim VanDyke

Outline 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 voice mail system

Current 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 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 messaging ROLM Phon v6.3 –PC/DOS-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

Voice over IP (VoIP)

VoIP review

Phone basics

Data port on phone Data port included on phone, keeps port count down Changed physical infrastructure requirements Two VLANs—1 for data; 1 for voice 10/100 port; auto-negotiate or hard- set

VoIP – a typical migration

Our deployed VoIP NETS configuration –Cisco Call Manager –Cisco Unity –IP Phones –PBX connectivity Marshall Field Site (MFS) network

Marshall Field Site (MFS) 4 analog lines on FXS ports on a Cisco Cisco 7960 IP phones –1 in data closet –1 over MFS WLAN Current diagram:

Lessons 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 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) –testing a 7914—14 line expansion module

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

VoIP vs. traditional PBX What’s the difference?

System administration

System redundancy

CM administration Done via web interface

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)

Phone feature comparisons

Voice Mail (VM) and Unified Messaging (UM)

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

UM benefits: Centralized communications control Browser-based administration Decentralized user-enabled tasks Scalable, redundant, fault-tolerant system tools

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

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 server(s) Would need to purchase backup software for server(s) Current vendor (Siemens) uses same setup

Unity user interface overview Basic voic functionality (via the phone) “Active Assistant” web interface to change phone mail options 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 overview Web interface for most tasks Standardized “digit interfaces” coming –numbers used for various functions will change

Next testing 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 servers Continued QoS investigation/testing Continued fax server testing

Future “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

Future Various approval processes (for which options)? –Voic 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-up NETS VoIP project page Cisco 7960 IP Phone tutorial Questions?