VoIP Deployment Options for Enterprises: Choosing the Right Solution

2. Decisions, Decisions…Hosted vs. Premises-based VoIP Deployment Frank M. Grillo Executive Vice President - Enterprise Services, Cypress Communications

3. VoIP Options for Enterprises Voice over Broadband (It’s VoIP for pre-schoolers) Build Your Own (But is it VoIP?) VoIP Options Have Someone Build it for You (It’s still probably not VoIP) IP Centrex (It’s VoIP as long as you like vanilla) Voice and Multimedia as a Service (The real McCoy)

4. Voice over Broadband • Uses the public Internet • Adaptor connects traditional phone lines to IP telephony service • Drawbacks • Uses the public Internet • Unmanaged voice quality • Not meant to support an Enterprise • Not WAN integrated • Potential low level of security • No business continuity

5. Build Your Own • Infrastructure is located at your site • You purchase the switch and equipment • You manage it or contract with a company to manage it for you • You still connect it to the same old telephone network the same old way • Drawbacks • Capital intensive • Resource intensive • To maximize the advantages, you become a phone company • Typically requires multiple vendors and custom integration • No built-in continuity – you can create it – but it costs $$$

6. Have Someone Else Build it for You • Infrastructure is located either at your site or at the vendor’s location • You purchase everything and then pay someone else to do the work • It’s still connected to the same old telephone network • The people who build it may not be the people who support it • Drawbacks • Multiple providers to integrate and manage • LAN/WAN management typically separated • You get what you want – but it’s all at a price $$ • Poor geographical redundancy – unless you’re paying $$ • You’re still on the hook for upgrades and maintenance

7. IP Centrex • Infrastructure located at provider site • Switch owned and managed by the provider • Switch shared among multiple customers • Drawbacks • Immature service providers • Very limited service set • Limited geographic span • Unmanaged LAN/WAN • Lack of end-to-end solution • Lack of national network limits business continuity protection

8. Voice and Multimedia as a Service • Complete end-to-end solution, including phones, integrated with full LAN/WAN management • Quality of service managed across LAN to handset • PBX features, unified messaging & multi-media combined into one solution • Off-premises hosting with full network and equipment redundancy • Drawbacks • You don’t “own” anything • You’re not “in control”

9. IP Centrex vs. Voice and Multimedia as a Service Aggregate Router IP Centrex Unmanaged LAN PSTN Aggregate Router Edge Router Your Phones Vendor Managed Edge Router Aggregate Router Managed LAN ManagedWAN Vendor Managed Voice and Multimedia as a Service IPPhones Enterprise Premises Provider Premises

10. What to Keep in Mind Superior Network • Engineered for 99.999% availability • Voice calls prioritized over dataand no single point of failure • Purpose-built to deliver VoIP services • Proactive monitoring of the network in real time • Supported by redundant devices at every point for maximum availability • Designed to automatically detect potential faults and self correct • Calls don’t touch the public Internet • End-to-End Solution • Quality of Service guaranteed from your desktop throughout the network • Full LAN/WAN integration • Advanced multimedia, collaboration and traditional calling features • Vendor with a legacy of providing excellent products and support

11. (continued) What to Keep in Mind Minimize your total cost of ownership • No capital expense • Eliminate risk and obsolescence • Flexibility—scale up or down as your business grows and changes • Inherent business continuity • Geographical and network redundancy • Customer premises redundancy • Make it Easy • One vendor for voice, data, Internet and LAN integration • Maximum service by fewest number of suppliers • Turnkey solution

12. Questions?