Voice over IP Voice over IP and Convergence and Convergence Tennessee Digital Tennessee Digital Government Summit Government Summit May 2, 2006 May 2, 2006 Derek C. Carver Derek C. Carver Assistant Director, ITS Assistant Director, ITS Nashville Metro Government Nashville Metro Government
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Voice over IP and Convergence Tennessee Digital Government Summit May 2, 2006 Derek C. Carver Assistant Director, ITS Nashville Metro Government.
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Voice over IPVoice over IPand Convergenceand Convergence
Tennessee Digital Government Tennessee Digital Government SummitSummit
May 2, 2006May 2, 2006
Derek C. CarverDerek C. Carver
Assistant Director, ITSAssistant Director, ITS
Nashville Metro GovernmentNashville Metro Government
TerminologyTerminology
VoIPVoIP
PRIPRI
PBXPBX
MACsMACs
BCMBCM
Key SystemKey System
TDMTDM
Centrex/EssexCentrex/Essex
PSTNPSTN
SONETSONET
Benefits of VoIPBenefits of VoIPReduced Operating Costs & Improved EfficiencyReduced Operating Costs & Improved Efficiency
Moves, Adds, and Change costs decrease.Moves, Adds, and Change costs decrease. Centralized AdministrationCentralized Administration Consolidation of telephone circuits (PRI’s, T-1’s, etc.)Consolidation of telephone circuits (PRI’s, T-1’s, etc.)
Platform for New Applications – possibilities include:Platform for New Applications – possibilities include: Desktop MessagingDesktop Messaging Global Address ListGlobal Address List Video ConferencingVideo Conferencing Support for XML-based applicationsSupport for XML-based applications
MobilityMobility Wireless IP sets – decrease cell phone use, increased accessibility.Wireless IP sets – decrease cell phone use, increased accessibility. ““Soft” phones on Desktop or Laptop computersSoft” phones on Desktop or Laptop computers
Protecting our InvestmentsProtecting our Investments Choosing a VoIP solution improves the data network foundation towards Choosing a VoIP solution improves the data network foundation towards
99.999% reliability. 99.999% reliability. The major manufacturers of Telecommunications Equipment are only The major manufacturers of Telecommunications Equipment are only
funding research and development for VoIP Solutions.funding research and development for VoIP Solutions. VoIP is an important part of the convergence of computers and telephones VoIP is an important part of the convergence of computers and telephones
into a single, integrated, information environment.into a single, integrated, information environment.
Challenges of VoIPChallenges of VoIPLeveraging Metro’s ResourcesLeveraging Metro’s Resources
For most Enterprises, deploying VoIP technology is For most Enterprises, deploying VoIP technology is challenging due to:challenging due to:
Limitations of the current data and voice infrastructures.Limitations of the current data and voice infrastructures. Insufficient LAN/WAN bandwidth.Insufficient LAN/WAN bandwidth. Costs of replacing existing telephony hardware.Costs of replacing existing telephony hardware. Shallow telephony knowledge.Shallow telephony knowledge.
Metro’s SONET backbone provides a robust, resilient, Metro’s SONET backbone provides a robust, resilient, and versatile data foundation for VoIP.and versatile data foundation for VoIP.
SONET was developed for Voice and Video Applications.SONET was developed for Voice and Video Applications. Data network for voice only (no contention for service)Data network for voice only (no contention for service) PRI’s across Metro SONET will reduce PRI costs.PRI’s across Metro SONET will reduce PRI costs.
VoIP Evaluation & TrialVoIP Evaluation & TrialITS “eats it’s own dog food”ITS “eats it’s own dog food”
Evaluating VendorsEvaluating Vendors Reviewed VoIP products and created Reviewed VoIP products and created
evaluation matrixevaluation matrix
Trial TechnologyTrial Technology ITS deployed VoIP telephones within our own ITS deployed VoIP telephones within our own
department.department. Trial for soft phones and wireless handsets Trial for soft phones and wireless handsets
also.also.
Trial MatrixTrial Matrix
Metro Network OverviewMetro Network Overview
Metro Telephony InfrastructureMetro Telephony Infrastructure
Centrex – Most Metro LocationsCentrex – Most Metro Locations
Option 81 – Howard Office BuildingOption 81 – Howard Office Building
Option 11 – 222 BuildingOption 11 – 222 Building
BCMs – Metro CenterBCMs – Metro Center
Key Systems – Various locationsKey Systems – Various locations
Metro Main PBXMetro Main PBX
VoIP LocationsVoIP Locations8/068/06
Juvenile Justice Center (235)Juvenile Justice Center (235)
Metro Office Building (300)Metro Office Building (300)
Metro Southeast (250)Metro Southeast (250)
Justice A.A. Birch Building (500)Justice A.A. Birch Building (500)
Howard Office Building (120)Howard Office Building (120)