SIP Trunk Deployment Use Case WellStar Health System Purpose Audience Jeff Ward Solution Architect Business Communications Solutions Group (BCSG) September 14, 2011 © 2011 Avaya Inc. All rights reserved.

Traditional Telephony Architecture Atlanta Georgia 11,000 employees 100 Locations 5 Hospitals 15 Medical Imaging centers 80 Doctor offices & Urgent care Traditional Telephony Architecture A look at were WellStar started - - Low capacity ISDN circuits are dedicated to each phone system - Segmented Systems that are not enabled for calling between locations - A high number of systems to manage - required outsourced managed services - Limited generators & UPS infrastructure - And limited Disaster recovery capabilities © 2011 Avaya Inc. All rights reserved.

WellStar Communications Requirements Integrated Solution (voice, video & chat) One Management Interface for the solution Cost Savings (reduce calling charges & reduce system management cost) Reliability & Redundancy (internal communications is critical for patient safety) Increase efficiencies with staff & reduce travel between locations Avaya’s Flatten Consolidate Extend (FCE) Model Flatten Consolidate Business Issues Integrated Solutions = On-Net Calling & Collaboration (video, voice & chat) Central managed = Single management interface for all solutions Cost savings = Intra-office calling & outsourced support services Reliability = Patient safety Internal Communications is highest priority (could be the difference between life and death) Efficiencies & Enhancements = Staff productivity & reduce travel time for meetings FCE model matches with a centralized SIP trunk solution Network = Power-over-Ethernet switches, circuit capacity upgrades, QOS policies, SIP trunk build Phased integration with existing voice platforms & enabled On-Net dialing Extend Enablement Traffic Study & Network Readiness Phased Migration © 2011 Avaya Inc. All rights reserved.

Service Provider CM CM VC VC MM MM App SIP Trunk SIP Trunk #7– Hardware Reduction Service Provider #9– New Applications #8 – Centralized Management Appointment Reminders App SIP Trunk #10 – Media Flows SIP Trunk Follow-up Calls #4 – Centralized Trunks Session Border Controller Session Border Controller Avaya Communication Manager CM Avaya Communication Manager #1 – Centralized Dial Plan Session Manager Session Manager CM #2 – On-Net Calling VC Avaya Video Conferencing Avaya Aura Session Manager Core Avaya Video Conferencing VC #3 – Enterprise Policies MM Avaya Modular Messaging MM Left side is Data Center 1 Right side is Data Center 2 One Active Session Manager per data center with plans to expand 1 > 10 digit dial plan (multiple area codes) 2 > Simple edge dial plan, Toll Bypass, Internal Transfers 3 > Call Admission Control 4 > Session Border Controllers provide SIP border, peering & Security. Network infrastructure not shown 5 > Migration continues to reduce edge trunks 6 > Collaboration includes all 100 locations 7 > Active/Standby model with 100% capacity (ESS = Enterprise Survivable Server) 8 > Avaya Aura Control Manager 9 > Appointment Reminders & Follow-up Calls 10 > IMS ready core and edge. Development with carriers continue to evolve. Avaya Modular Messaging #6 – Collaboration One-X Communicator Urgent Care 9600 IP Desk Phones Hospital Dr. Office Medial Imaging #5 – Reduce Edge Trunks 4

Success with SIP Avaya Aura Architecture Contact Center - High Capacity SIP Trunks - Ease of Management - Removed Outsourced Services - Disaster Recovery & Alternate Routing - Increased Patient Safety Contact Center - Self Service Transfers - Agent Transfers - Pre-Routing - Click-to-Talk - Click-to-Chat Avaya Communications Flatten Consolidate Extend Collaboration - Voice - Chat - Video - Appointment Reminders - Follow-up Calls Voice Communications - On-Net Calling - Internal Transfers - Centralized Voice Messaging - Conferencing 3 Areas of cost savings (Avaya Aura, Collaboration & Voice) Migration pace did not require ROI for success Compressed Voice G729 Collaboration - Efficiencies & Enhancements Voice Effective internal transfers with directory access Video Remove travel time for video conferences Audio 64k>80k with overhead and 1-3meg for HD video Video can go down to 200k Avaya Cost Estimator Tools - Return on Investment - Internal Rate of Return - Net Present Value Estimated Cost Savings 40% 4 5

Network Design to support SIP Trunks QOS Dial Plan strategies Compressed G729 over the WAN Session Managers on 6.0 © 2011 Avaya Inc. All rights reserved.