1. DAVIS LLP and the DAVIS LLP logo are trade-marks of Davis LLP, © 2007 Davis LLP, all rights reserved. Unauthorized copying, distribution and transmission is strictly prohibited. RETURN TO MAIN IPT Implementation and the RFP Process Dean Leung Director of Information Technology Davis LLP Warren Jones Chief Information Officer Pillsbury Winthrop Shaw Pittman LLP

2. RETURN TO MAIN Agenda Firm Background ROI: Financial & Productivity Central vs Distributed Architecture Phone System Design Core, switches, power, & remote offices WAN Design & Implementation Consultant vs In-house Resources Training Current & Future Use of Technology Lessons Learned

3. RETURN TO MAIN Background Office (users)2005 (MBps)2007 MPLS2007 VPN Vancouver (327)3 MBps40 MBps3 MBps Edmonton (69)102010 Calgary (44)ADSL201.5 Toronto (74)10201.5 Montreal (18)ADSL101.5 Yellowknife (6)1.5 n/a Whitehorse (8)1.01.5n/a Tokyo (2)10Fastn/a

4. RETURN TO MAIN Background Office (users)2005ROI Vancouver (327)Cisco VoIPExisting Edmonton (69)Analog PBXTrade-in Calgary (44)Telco Centrex30 months ($2k/month) Toronto (74)Building Centrex 18 months ($5k/month) Montreal (18)Nortel PBXNew premises Yellowknife (6)Analog PBXNone Whitehorse (8)Analog PBXNone Tokyo (2)Digital PBXNew premises

5. RETURN TO MAIN ROI Financial Expansion beyond Vancouver implementation Financial: Significant recurring cost savings over leased and Centrex systems Elimination of long distance toll charges between cities Ease of moves, adds, changes saving time and technician call-in Standardize routers, phones, dialling procedures, & training Office renovations would only require ½ the cabling as phones and network share the same infrastructure Cost effective DR Reduction in the number and complexity of RightFax servers

6. RETURN TO MAIN ROI Productivity Productivity: Extension mobility 4-digit dialling between offices Single voicemail system Multiple area code numbers per phone set Standardize phones, dialling procedures, & training Simplified foundation for future initiatives

7. RETURN TO MAIN Centralized versus Decentralized CallManager Express (CME) & Unity Express Fully independent phone system in each office expense of additional features Good option for firms not yet ready to implement a voice quality WAN Future implementation of a centralized system with no loss of initial investment

8. RETURN TO MAIN Centralized Versus Decentralized SRST vs CME Survivable Remote Site Telephony (SRST) mode = CallManager Express (CME) Unavailable features in SRST/CME mode Conferencing Extension mobility Call forwarding Call parking Call accounting One touch voicemail access

9. RETURN TO MAIN Centralized versus Decentralized Centralize system with full CallManager and Unity Voicemail: Capital Preservation: The existing Vancouver-based CallManager and Unity hardware was capable of supporting all users. Business Continuity (BC): It was more cost effective to implement a BC strategy in a centralized environment. Integration: In a decentralized model you would not have features such as extension mobility and voicemail forwarding between offices.

10. RETURN TO MAIN Phone System Design - Core PBX 2 Cisco Unified CallManagers - HP DL360 Voicemail Cisco Unity - HP DL360 DR Site: CallManager Virtualized Unity Network: VLAN voice and data on switches with QoS Other vendors or Open Source Asterisk

11. RETURN TO MAIN Phone Power Switches with Power over Ethernet (PoE) major offices enough for phones only re-use old switches at edge UPS upgraded to match CallManager to maintain phone operation Power bricks smaller offices UPS added for key phones

12. RETURN TO MAIN Phone System Design - Remote Office Utilized central CallManagers and voicemail servers phone set, switch, and UPS requirements identical to the Vancouver office. Each office require local phone and fax DIDs. Ensure that phone service un-interrupted if there was a WAN outage Cisco router (2800 – 3800 series) in each remote office: Survivable Remote Site Telephony (SRST) Phone and V-mail failover VPN tunnel between offices Private WAN to Internet VPN failover and failback QoS tagging for voice priority PRI voice and fax termination Analogue modem gateway

13. RETURN TO MAIN WAN Design Cost and availability limited scope of design MPLS mesh between 5 major offices Yellowknife, Whitehorse, Tokyo via internet VPN Mesh VPN for redundancy & low time sensitive traffic: e-mail, intranet, printing Award contracts to those with different physical infrastructure to minimize single point of failure - last mile issue

14. RETURN TO MAIN Quality of Service (QoS) Ensure voice and video have carpool lane over WAN VPN links without QoS during failover QoS Design and Overflow to PSTN 1 MBps=10 concurrent calls Overflow 11th and subsequent calls to PSTN

15. RETURN TO MAIN WAN Implementation Largely invisible to user Provisioning times best guess only Static routes to cut over and back as required MPLS first then VPN to Tokyo, Yellowkinfe, & Whitehorse via Cisco routers with seamless failover to backup VPN site Finally mesh VPN links and route low priority traffic over VPN - use what you have

16. RETURN TO MAIN Consultant Implementation Managed every aspect of the deployment Leverage the expertise of our integrators Not able to take ownership of the new system - black box typically in traditional PBX based systems No touch maintenance clauses longer diagnostic and repair times as we would have to call in the integrators for issues and installation of patches which could otherwise be handled in-house. new Cisco switches were running IOS CallManager and Unity servers were running Windows 2000 Server as the OS and Microsoft Exchange 2000 for voicemail.

17. RETURN TO MAIN Hip-to-Hip: Firm Ownership Hip-to-hip deployment integrators worked closely with Cisco certified in-house IT staff Integrators implemented, optimized, and documented first remote office IT team took ownership of the project and deployed the balance of the offices with the integrators monitoring and assisting as required. Model of the router and number of phone in each office being the only variables this process was largely a cut and paste operation

18. RETURN TO MAIN Install Workflow At a high level the steps were as follows: 1.Install new switches in each office 2.Deploy phones to each user 3.Configure Cisco router a.SRST functionality b.Fax routing c.Voice routing d.Long distance routing e.Analog lines 4.Test failover and failback of WAN 5.Train users and provide hands on testing - KEY 6.Port lines over or move PRI to new system once users are comfortable 7.Retire old system and collect phones

19. RETURN TO MAIN User Training Boardroom demos Pre-recorded WebEx sessions Quick reference cards Pre-train secretaries to support lawyers Phones already deployed for inter and intra- office use and v-mail setup Minimized support after cutover

20. RETURN TO MAIN Leverage New Infrastructure Fax server consolidation (3:1) Inbound DID Faxing Consolidation of RightFax Servers Local office PRIs for Fax DIDs Routing faxes back to Vancouver & e-mailed to user

21. RETURN TO MAIN Leverage New Infrastructure Cost Recovery Centralized cost recovery of fax and phone calls Standardization across the firm Video Conferencing (VC) QoS tagging Voice, video (codec better), other 4-digit dialing between Tandberg systems and phones Webcam and software turns desktop into VC station

22. RETURN TO MAIN Future Telephony Possibility 3 rd party applications IP Phones are XML browsers – endless possibilities Ciscos IP Softphone Hands-free Outlook contact dialling File voicemail into the DMS Firmwide or targeted broadcast messages (e.g. outages, weather, bulletins, stock quotes) on phone displays Paging system WiFi Phones for meeting areas

23. RETURN TO MAIN Lessons Learned Find a good implementer with extensive experience and knowledge of both voice and data systems Ensure you have provisions with the implementer and train techs to avoid black box systems Buy support directly from the vendor, not the implementer Stick with the local incumbent Telco to reduce delays and complexity for phone services Track WAN uptime to ensure Service Level Agreements are met

24. RETURN TO MAIN Lessons Learned 2 Get physical data paths from your WAN provider and perform periodic audits to ensure traffic takes the most direct route Setup one office first and wait until everything matures before expanding Patch Cisco products only if there is an identified fix as features and functionality can be removed between patches Telco install/provisioning dates are best guesses ILTA Voice and Data Communications Whitepaper - http://www.iltanet.org/communications/pub_detail.aspx?nvID=000000011205&h4ID=000000872605 http://www.iltanet.org/communications/pub_detail.aspx?nvID=000000011205&h4ID=000000872605

25. DAVIS LLP and the DAVIS LLP logo are trade-marks of Davis LLP, © 2007 Davis LLP, all rights reserved. Unauthorized copying, distribution and transmission is strictly prohibited. RETURN TO MAIN IPT Implementation and the RFP Process Dean Leung Director of Information Technology Davis LLP Warren Jones Chief Information Officer Pillsbury Winthrop Shaw Pittman LLP