1. VoIP - Abridged - Stephen R. Nelson November 11, 2005 www.zentality.com

2. November 11, 2005Page 2 Agenda What is VoIP? The Opportunity Vendor Approaches Sample Implementation Benefit examples Key take-aways

3. November 11, 2005Page 3 VoIP Defined Definition: Voice Over Internet Protocol (VoIP) is defined as making telephone calls over the Internet. Internet telephone calls can originate from: traditional phone sets, through gateways; PC’s using software and headsets; and VoIP phones. Telephone calls can be made within the established Internet network, called “on-net” calls, or Calls can be completed to locations “off-net” via hand-offs to the public switched telephone network “PSTN.” What’s VoIP?

4. November 11, 2005Page 4 VoIP is different What’s VoIP?

5. November 11, 2005Page 5 A significant cost reduction Implementing VoIP for business has a savings potential far beyond a savings in long distance expense Today: –Virtually all businesses have two networks – one voice, and at least one data –Businesses with several locations often have several voice networks – one for each facility –Most voice communications systems are over configured and highly underutilized –Virtually all voice communications systems are implemented on expensive specialized or proprietary hardware and software platforms Combining voice and data networks yields a significant savings The Opportunity

6. November 11, 2005Page 6 Vendor Approaches

7. November 11, 2005Page 7 A Sample Implementation

8. November 11, 2005Page 8 The resulting savings - #1 Was:As Proposed:

9. November 11, 2005Page 9 The resulting savings - #2 Traditional:Open-source:

10. November 11, 2005Page 10 Key take-aways VoIP works Significant savings can come from consolidating networks Open-source, non-proprietary IP PBX’s running on commodity servers will be broadly adopted IP PBX solutions have great application capabilities for call handling Start by examining your network spend –Components –Contract terms Avoid upgrading existing voice systems Don’t buy a proprietary solution for voice communication Utilize an Open-source solution as a media gateway; or for voice mail Thanks for having me on!