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)

Historic Courthouse (400)Historic Courthouse (400)

SONET PRI LocationsSONET PRI Locations

North Police Precinct (70)North Police Precinct (70)

Hermitage Police Precinct (85)Hermitage Police Precinct (85)

South Police Precinct (70)South Police Precinct (70)

Davidson County Sheriff’s Office (100)Davidson County Sheriff’s Office (100)

Domestic Violence (45)Domestic Violence (45)

222 Building (350)222 Building (350)

VoIP and SONET PRIVoIP and SONET PRI

VoIP Phones – 1,805VoIP Phones – 1,805

PRIs – 720PRIs – 720

Total Converged phones – 2,525Total Converged phones – 2,525

Success StoriesSuccess Stories

Metro Tax AssessorMetro Tax AssessorHOB Katrina FloodHOB Katrina FloodSan Antonio TravelSan Antonio TravelMetro AdvantagesMetro Advantages MACsMACs PRIs on SONETPRIs on SONET GALGAL Desktop Messaging – Voice Mail, Fax, etc.Desktop Messaging – Voice Mail, Fax, etc. SoftphoneSoftphone Wireless phoneWireless phone

Q&A TimeQ&A Time

Questions?Questions?