January 23-26, 2007 Ft. Lauderdale, Florida TMC University’s Introduction to the IP-PBX Reaping...

January 23-26, 2007• Ft. Lauderdale, Florida

TMC University’s Introduction to the IP-PBXReaping the Benefits of the IP PBX

Leigh Fatzinger, VP MarketingCitel. The VoIP Migration Company.citel.com


Agenda

In this session:• What is an IP PBX (and what isn’t)?• What are the Benefits?• Lease versus Buy• Deployment Considerations

• What we won’t cover in this session:– Telling you what to buy– Technical details in depth


What is an IP PBX?

• A software application on an server.• The directory service and traffic controller

between “endpoints”.– An endpoint can be a telephone (of many kinds), a

handset gateway, device (e.g. PSTN trunk gateways), or another application (I.e: voice mail).

– Critical distinction ⇨ the media stream (the voice) does not flow through an IP PBX.


What is a PBX?

TDM PBX

Challenges:Not open.Little room for innovation.

Not driven by software.

Trunk CardsStation Cards

Software

Media Network

TDM PBX

PSTNPSTNTrunks


What is an IP PBX?

PSTN

PSTN

IPPBX

Trunk Gateway

Trunks

IP PBX Software(w/ Applications)

LAN

1010


Software

Media Network

TDM PBX

PSTNPSTNTrunks

TDMPBX

Open it up! Innovate!Set the software free!

1010


What is an IP PBX?


Software

Media Network

TDM PBX

PSTNPSTNTrunks

TDMPBX 1010 Open it up! Innovate!

Set the software free!

IP PBX

Trunk Gateway

Trunks

IP PBX Software(w/ Applications)

PSTNPSTN

LAN

1010

Media Network

Handset Gateway


What an IP PBX is not.

VoIP ≠ IP PBX

“PC PBX” (Cards in a Server) ≠ IP PBX

TDM PBX with IP Trunk Cards ≠ IP PBX

TDM PBX with IP Station Cards ≠ IP PBX


What an IP PBX is not.

VoIP ≠ IP PBX

“PC PBX” (Cards in a Server) ≠ IP PBX

TDM PBX with IP Trunk Cards ≠ IP PBX

TDM PBX with IP Station Cards ≠ IP PBX

An IP PBX is a software application on a server.

Critical distinction ⇨ the media stream (the voice) does not flow through an IP PBX.


Agenda


• What we won’t cover in this session:– Telling you what to buy– Technical details in depth


What are the Benefits?

• Lower Operating Cost• Scalability and Disaster Recovery• Geographic Flexibility• Next-Generation Features



Lower Operating Costs

Reduced LD Opex• Pass calls over Internet or WAN between sites• Route traffic over WAN to area of lowest rates• Get cheap LD from an IP Carrier




Reduced LD Opex• Pass calls over Internet or WAN between sites• Route traffic over WAN to area of lowest rates• Get cheap LD from an IP Carrier

Reduce number of business lines• Share trunks among sites (or centralize them)• Pay for a full T-1 plus 2 backup trunks per site

(instead of 6-8 trucks per site)




Cheap long distance• Pass calls over Internet or WAN between sites• Route traffic over WAN to area of lowest rates• Get cheap LD from an IP Carrier

Reduce number of business lines• Share trunks among sites (or centralize them)• Pay for a full T-1 plus 2 backup trunks per site

(instead of 6-8 trucks per site)

Lower administration cost (esp. MAC)• Web-based administration means less training cost• Allows remote and centralized administration• Enables user self-administration



Scalability and Disaster Recovery

Software inherently more scalable• Not limited by cabinet size for lines and trunks• More devices can be added as needed• Not limited by PBX processor capacity

• Clustered servers can add scale (like web sites)



Scalability and Disaster Recovery

Software is inherently more scalable!• Not limited by cabinet size for lines and trunks• More devices can be added as needed• Not limited by PBX processor capacity• Clustered servers can add scale (like web sites)

Mirrored servers can be miles apart• Same technology used for www and FTP• If one server goes down, devices “scramble” to another

server and overall service stays up



Geographic Flexibility

No 2500 foot wire length limit• Both signaling (“features”) and media (voice) are passed

over IP at any distance• Phones and other devices all over the city and around the

world can work as a single network• Single dialing plan, central administration, shared

resources and applications, etc.



Geographic FlexibilityNo 2500 foot wire length limit• Both signaling (“features”) and media (voice) are passed over IP

at any distance• Phones and other devices all over the city and around the world

can work as a single network• Single dialing plan, central administration, shared resources and

applications, etc.

This enables several other benefits:• Reduced LD opex• Mobility and Telecommuter Support• Disaster recovery• Hosting becomes a viable option



Improved FeaturesDefinition of a “Feature”

• Dial tone, Make/Take Calls (DID/DOD)• Music-on-hold, Paging, DND• Caller ID, MWI, Multiple Line Appearances• Call Forwarding, Bridged Lines, BLF

☞ Traditional PBXs Stuck Here



Improved FeaturesHold, Transfer, ConferenceMusic-on-hold, Paging, DNDCaller ID, MWI, Multiple Line AppearancesCall Forwarding, Bridged Lines, BLF☞ Traditional PBX Stuck Here

Next-Generation Features• Call Logs, Directory Dialing• Instant Messaging• Telecommuting, Simul-Ring• Computer - Telephone Integration (CTI - a bundle)• Unified Messaging (an application)

☞ IP Telephony Enables All These


Computer Telephony Integration

Desktop, Laptop and Handset Work In Tandem:

• Click-to-Dial• Call Logging• Call recording• Incoming Call Pop• Visual Call Control


Unified Messaging

Single System for Voice, Fax and Email

• See All Mail in One In-Box• Listen to Voice Mail via PC• Hear Email via Phone• Respond to Voice Mail with Email and vice versa

(reduce call-backs!)• Forward and Folder Voice Mail with Email


Web-Based Administration

PBX Administration Can Be Opened to Broader Group

• Reduce Training for PBX Administration• Customer Self-Administration for Moves, Adds,

Changes.• User Self-Administration (speed dial programming,

call routing capabilities)• Combined Administration of PBX, LAN, Email…


Home Office/Branch Support

Enable PBX handsets to be deployed over IP

WAN or Internet.

• Part or Full-Time Telecommuters• Small Branch Office to Metro Hub• Distributed Call Center• Toll By-Pass• Coordinated Dialing Plan


Eventually, you’ll want all these:

• Computer Telephone Integration (CTI)• Unified Messaging• Telecommuter / Branch Office Support• Web-based Administration

You can do all these on a TDM PBX…

…at a price


Next-Gen Features on TDM

TDM PBX

PSTNPSTNCircuit Trunks

1010



TDM PBX

PSTNPSTN

CTIAdaptor

Circuit Trunks

1010

Add CTI: $250-$500 per user


VoiceAdaptors

UM Server


TDM PBX

PSTNPSTN

CTIAdaptor

Circuit Trunks

1010

Add UM: $200-$400 per user



TDM PBX

WAN or

VPN

WAN or

VPN

IP Trunk Adaptor

Branch PBX / KTS

PSTNPSTN

VoiceAdaptors

UM Server

CTIAdaptor

IP T. A.

Circuit Trunks

1010

Add VoIP Toll Bypass: $xxK



TDM PBX

WAN or

VPN

WAN or

VPN

IP

IP Trunk Adaptor

RAABranch PBX / KTS

PSTNPSTN

VoiceAdaptors

UM Server

CTIAdaptor

IP T. A.

Circuit Trunks

Remote Access

1010

Add Telecommuter Support



TDM PBX

WAN or

VPN

WAN or

VPN

IP

IP Trunk Adaptor

RAABranch PBX / KTS

AdminServer

PSTNPSTN

VoiceAdaptors

UM Server

CTIAdaptor

Circuit Trunks

AdminLink

Remote Access

1010

Add Web-based Admin

IP T. A.



TDM PBX

What’s wrong with this picture?

Will this work?

WAN or

VPN

WAN or

VPN

IP

IP Trunk Adaptor

RAABranch PBX / KTS

AdminServer

PSTNPSTN

VoiceAdaptors

UM Server

CTIAdaptor

IP T. A.

Circuit Trunks

AdminLink

Remote Access

1010


Trunk Gateway

Trunks

IP PBXPlusApplications

PSTNPSTN

LAN

LANWAN or

VPN

WAN or

VPN1010

1010

1010

1010

Next-Gen Features in IP

• Software can be spread across many devices.• One Company doesn’t have to make all the elements.• Different elements can be places anywhere.

PC soft phone from Microsoft, Handset Gateway from Citelphones from new IP PBX vendor, plus your old phones.



• Lower operating cost• Scalability and disaster recovery• Geographic flexibility• Next-generation features

These all stem from Software Enabling the PBX

Compare the pace of PBX feature development to the pace of Internet feature development.



If Local LAN Deployment is an Issue:

•User experience maintained•Less customer training•Mix in IP phones as needed•Re-use of phone focuses attention on •IP applications•Existing PBX work force can be leveraged

A Handset Gateway converts your existing PBX telephones into IP phones without doing a LAN upgrade or buying

new phones. Get the benefits of IP telephony at $100/seat

instead of $600.

L A N

IP Phone

Re-use PBX Wiring

Gateway

LAN Server

R

Gateway


Agenda



Lease versus Buy


You can buy and operate the service yourself…

IP PBX

TrunksPSTN

1010

LANIP PBX Software& Applications

PSTNGateway


Lease versus Buy


You can buy and operate the service yourself…

or you can “rent” service from an service provider.

TrunksPSTN

1010

LANIP PBX Software& Applications

PSTNGateway

WAN


Rent versus Buy

An IP PBX is a software application on a server. You can buy and operate the service yourself… or you can “rent” service from anservice provider.

RentLower CapexLower Risk of ObsolescenceNo Server MaintenanceGeographic ReachSLA Guarantees UptimeCombined Billing(Voice/Data)Eliminate PSTN Charges

BuyHigher CapexHigher Risk of ObsolescenceMore Direct ControlMultiple Vendor SelectionUptime is Up-to-YouMultiple Carriers (Voice/Data)Shop for PSTN Deals


Traditional Centrex Service

• Dedicated wired service from Central Office

• Limited functionality with Analog or proprietary Centrax feature telephones

• All Applications derived from C.O. (Voice Mail, etc.)

L A N

R.B.O.C

Central Office

R

My

Cen

trex


Hosted IP

L A N

Service Provider

or Central Office

Hosted Applications from Softswitch makers, providing:

Hosted IP using SIPUnified MessagingVoice RecognitionSingle Number Service, Etc.Calls can be re-routed to mobiles

IP Phones

Softswitch

Gateway for PBX Telephones

Traditional PBX Telephones

using existing level 3 cable

R IP Phones

Remote Serving

Location


Lease versus Buy

Centrex Limitations• Relatively expensive compared to PBX• Limited features compared to PBX• Difficult to provision, long lead times for MAC• Mainly attractive to <10 users or > 2000 users

• Only has 10% - 14% market share vs. PBX


Lease versus Buy

Centrex Limitations• Relatively expensive compared to PBX• Limited features compared to PBX• Difficult to provision, long lead times for moves, adds,

changes.• Mainly attractive to <10 users or > 2000 users• Only has 10% - 14% market share vs. PBX

Hosted IP Telephony• Costs are leveled (no wires, no class 5 switch)• Features are the same (it’s the same software)• Provisioning and administration are web-based• Expected to win 25% to 50% market share• Do you host your own web servers?


Lease versus Buy

Centrex Limitations• Relatively expensive compared to PBX• Limited features compared to PBX• Difficult to provision, long lead times for MAC• Mainly attractive to <10 users or > 2000 users• Only has 10% - 14% market share vs. PBX

Hosted IP Telephony• Costs are leveled (no wires, no class 5 switch)• Features are the same (it’s the same software)• Provisioning and administration are web-based• Expected to win 25% to 50% market share• Do you host your own web servers?


Agenda



Considerations in Choosing

• What are you trying to achieve?– What benefits are driving your decision?

• How will you get there?– Does the solution offer a migration path?

– Can you protect your sunk costs?

• Watch out for hidden costs.– LAN upgrade for QoS and PoE can be costly.

– Make sure the total cost is accounted for.

• Should you buy or rent?– Don’t make a knee-jerk decision on this.

– Hosted IP telephony is a real option.


Summary

• IP telephony is compelling telephony because of the benefits it brings.

• Don’t be confused by VoIP noise.• Features and applications are the real drivers behind

all PBX telephony. Be clear about what your want in your solution.

• Consider the rent versus buy option, and look for a good migration option.


For more information, or to speak with a Citel VoIP Migration Consultants:

Email: [email protected]

Free White Paper: www.citel.com/10myths

Toll Free: 1.888.454.7979

January 23-26, 2007 Ft. Lauderdale, Florida TMC University’s Introduction to the IP-PBX Reaping...

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Transcript of January 23-26, 2007 Ft. Lauderdale, Florida TMC University’s Introduction to the IP-PBX Reaping...