ShoreTel Virtualization February,

© 2014 ShoreTel, Inc. All rights reserved worldwide. Unified Communications Deployment Model 1 Secure Reliable power source Cost savings with SIP trunking Local trunking only for backup and/or emergency use Hardware utilization Operational costs Business continuity & applications availability during downtime Virtualized infrastructure Server(s) deployed in data centers Centralized trunking

© 2014 ShoreTel, Inc. All rights reserved worldwide. ShoreTel Virtualization Model Leverages the existing infrastructure Delivers the ultimate flexibility via mix and match implementation options: -Physical, virtual, or combination of both Brilliantly simple administration Low Total Cost of Ownership

© 2014 ShoreTel, Inc. All rights reserved worldwide. Virtualized ShoreTel System Components  UC Platform –Virtual IP Phone Switch –Virtual SIP trunk switch –SBC (Software-only Ingate™ SIParator)  Collaboration (IM and Conferencing) –Virtual Service Appliance  Contact Center –ShoreTel Enterprise Contact Center  Administration –ShoreTel HQ server with Unified Messaging new

© 2014 ShoreTel, Inc. All rights reserved worldwide. Flexibility of Deployment Ease of Administration ShoreTel Virtualization Highlights Flexibility of Architecture Low Total Cost of Ownership

© 2014 ShoreTel, Inc. All rights reserved worldwide. Remote Office Datacenter HYBRID Pick deployment to fit the infrastructure Flexibility of Deployment Virtual Physical

© 2014 ShoreTel, Inc. All rights reserved worldwide. 6 Flexibility of Architecture: Centralized at the Core Primary Server End-Point Options ITSP Headquarters and/or Data Center Teleworker End-Point Options ShoreTel Distributed Architecture End-Point Options Remote Office End-Point Options WAN Mobile Devices IP Phones VPN Phones ShoreTel Dock DECT Phone Analog Devices Softphone Client Software for Mac, PC and mobile devices Back-Up Server Browser-Based Administration

© 2014 ShoreTel, Inc. All rights reserved worldwide. 7 Flexibility of Architecture: Distributed to the Edge Voice Switches End-Point Options ITSP / PSTN Headquarters and/or Data Center Teleworker End-Point Options ShoreTel Distributed Architecture End-Point Options Remote Office End-Point Options Voice Switches Mobile Devices IP Phones VPN Phones ShoreTel Dock DECT Phone Analog Devices Softphone Client Software for Mac, PC and mobile devices Browser-Based Administration PSTN HQ Server WAN

© 2014 ShoreTel, Inc. All rights reserved worldwide. 8 Flexibility of Architecture: Hybrid Voice Switches Primary Server End-Point Options ITSP Headquarters and/or Data Center Teleworker End-Point Options ShoreTel Distributed Architecture End-Point Options Remote Office End-Point Options Voice Switches Mobile Devices IP Phones VPN Phones ShoreTel Dock DECT Phone Analog Devices Softphone Client Software for Mac, PC and mobile devices Back-Up Server PSTN WAN Browser-Based Administration

© 2014 ShoreTel, Inc. All rights reserved worldwide. Ease of Administration: Installation and Maintenance Ease of deployment –Virtual images are part of the ShoreTel Director software –Same management for physical and virtual appliances Simple licensing –Virtual Phone capacity license –Virtual SIP trunk license –Same collaboration licenses for virtual or physical service appliances N+1 redundancy –Physical or virtual Spare Switch anywhere in the network –No dropped calls 9

© 2014 ShoreTel, Inc. All rights reserved worldwide. Ease of administration: Increased Scalability Max Capacity per Physical Appliance or Virtual Machine Physical Appliance Virtual Machine Phones2201,000 Make-Me conference2460 Hunt Groups840 SIP trunks 220 without media proxy 20 with media proxy 500 with media proxy Conferencing: audio/web/IM200/100/2,000200/200/2,000 10

© 2014 ShoreTel, Inc. All rights reserved worldwide. Virtualization Configuration Examples IP Phones Servers Running VMware IP Phone Switch Virtual Machines

© 2014 ShoreTel, Inc. All rights reserved worldwide. Total Cost of Ownership Leverage virtual infrastructure customers already own and operate Mix and match hardware-based and virtual appliances in a single network – managed through the same admin interface Extend existing business continuity practices (VMware HA, VMotion) or take advantage of ShoreTel’s N+1 Increase phone, SIP trunk and IPT feature capacities per switch 12 Brilliantly Simple