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 Benefits Low-cost telephony
Uses the public Internet
Adaptor connects traditional phone lines to IP telephony service
Benefits
Low-cost telephony
Supports isolated home workers
Supports residential use
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 Benefits 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
Benefits
Highly customizable
Complete control
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
Benefits
Highly customizable
Lower capital and operational costs
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 Benefits You don’t have to buy and deploy a switch
Infrastructure located at provider site
Switch owned and managed by the provider
Switch shared among multiple customers
Benefits
You don’t have to buy and deploy a switch
Potential lower operational costs
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
Benefits
Highly customizable
Single vendor for everything
No equipment capital outlay
Inherent business continuity
Nationwide coverage
Drawbacks
You don’t “own” anything
You’re not “in control”

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

10. What to Keep in Mind 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
Superior Network
Engineered for % availability
Voice calls prioritized over data and 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

11. What to Keep in Mind Minimize your total cost of ownership
(continued)
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?