SIP Trunking…

www.itexpo.com

October 10-13, 2006• San Diego Convention Center, San Diego California

SIP Trunking…

Why is it so important?

www.itexpo.comwww.itexpo.com


TDM IP

PSTN

EnterprisePBX

EnterpriseMedia

Gateway

IPTelephone

Typical IP PBX Components

Today:Today: • IP PBX Capabilities Deployed INSIDE the EnterpriseIP PBX Capabilities Deployed INSIDE the Enterprise

• Hardware gateways connect traditional voice circuitsHardware gateways connect traditional voice circuits



TDM IP TDM IP

PSTN

EnterpriseSoftswitch

EnterpriseMedia

Gateway

IPTelephone

CLASSSwitch

PSTN

CarrierMedia

Gateway

CarrierIP

Infrastructure

CarrierSoftswitch

CarrierMedia

Gateway

IP to TDM to IP to TDM …


IPTelephone

PSTNCarrier

IPInfrastructure

CarrierSoftswitch

CarrierMedia

Gateway

TODAY…

AN INTERIM SOLUTION…

IAD

TDM IPTDM IP



TDM IP TDM IP

PSTN


EnterpriseMedia

Gateway

IPTelephone

CLASSSwitch

PSTN

CarrierMedia

Gateway

CarrierIP

Infrastructure

CarrierSoftswitch

CarrierMedia

Gateway

IP to TDM to IP to TDM …


EnterpriseEdge

IPTelephone

PSTNCarrier

IPInfrastructure

CarrierSoftswitch

CarrierMedia

Gateway

TDM IP

TODAY…

NOW…



This is Real SIP Trunking.

• Pure IP voice connectivity = Better QualityPure IP voice connectivity = Better Quality• Flexible number of voice calls = Business FlexibilityFlexible number of voice calls = Business Flexibility• Less hardware devices to manage = Lower CostsLess hardware devices to manage = Lower Costs• Single circuit with multiple services = Better EconomicsSingle circuit with multiple services = Better Economics


EnterpriseEdge

IPTelephone

PSTNCarrier

IPInfrastructure

CarrierSoftswitch

CarrierMedia

Gateway

TDM IP



Multi-carrier terminations…

• Call-by-call termination leverages cost benefits of multiple carriers & improves performance

• Multiple IP termination points across enterprise provide inherent redundant paths

• Multiple carriers inherently provide greater reach


EnterpriseEdge

IPTelephone

PSTN

CarrierIP

Infrastructure

CarrierSoftswitch

CarrierMedia

Gateway

TDM IP

PSTN

CarrierMedia

GatewayPSTN

CarrierMedia

Gateway

A

B

C



Comparison of Service ModelsConsumer & Business

Business

Large Medium Small

Consumer / Residential

AT&T, BandTel, Cbeyond, Global Crossing, Starvox, USLEC, XO . . .

Comcast, Vonage, Tomato Vine. . .

BundledServices(Triple Play)

ITS

P

Exa

mp

les

Bu

sin

ess

Mo

de

ls

CheapDialTone

Se

rvic

eM

od

els

Se

rvic

eT

ype

s

Un-Managed

Best Efforts Voice Quality, Capacity Controlled

Fully ManagedService Level Agreements,

performance + fault monitoring, QoS, etc.

Mar

ket

Seg

men

ts

Voice: (Local+LD+Toll Free), Data, Web Hosting

Internet Dial Tone

Voice over “Managed” IP

SIP “Soft” Trunking

VoIP Centrex

VoIP Gateway Trunking



Comparing Service TypesV

oIP

Cen

trex • Providing managed telephone service

to a business over an IP connection.• This may be wither a “fully managed”

or “un-managed” IP connection.

VoI

P G

atew

ay

Tru

nkin

gS

IP “

Sof

t”

Tru

nkin

g

• Providing voice and data services to a business over a “converged” network connection.

• Narrowband Voice Services are broken out separately at the customer premise using a “media gateway”.

• Providing broadband voice and data services to a business over a “converged” network connection.

• Voice services are broadband or “all IP” to the telephony device.

• Full service• No expert

staff needed• Low initial

investment

• Economics of V+D convergence

• Economics convergence

• Enhanced Services

• Lowers CapEx

• Little to no “control”

• Restricted Capabilities

• Narrowband service – limited services

• Personnel costs

• CapEx

• Personnel costs (compared to VoIP centrex)

Type Description Pro Con



Understanding the SIP Trunk Services

Carrier Local / DID

Long Dist.

Toll

Free

E911 Centrex VoIP

GW (IAD)

SIP

Trunk

ITSP 1 Yes Yes Yes Yes Yes SIP SIP

ITSP 2 No Yes Yes No No SIP No

ITSP 3 No Yes Yes No No H.323 No

ITSP 4 Yes Yes Yes Yes SIP H.323 No

• Managed vs. Un-managed (Device Management)• On-net vs. Off-net (TDM points/IAD, Carrier hop-off)• Quality of Service Capabilities (V quality methods)• Service Level Guarantees (Contractual Warrants)

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THERE’S MORE…

…that makes SIP Trunking important.



Once you’re IP, More opportunities…

• The enterprise IP PBX has become a software-based unified communications engine

– Easily downloaded, and installed on standard servers– It offers much more than just voice over IP!– How can you leverage IM, Video, Presence and more?


EnterpriseEdge

IPTelephone

PSTNCarrier

IPInfrastructure

CarrierSoftswitch

CarrierMedia

Gateway

TDM IP



TDM IP TDM IPIP

PSTN


EnterpriseMedia

Gateway

IPTelephone

CLASSSwitch

PSTN

CarrierMedia

Gateway

CarrierIP

Infrastructure

CarrierSoftswitch

CarrierMedia

Gateway


EnterpriseMedia

Gateway

IPTelephone

Islands of Enterprise IP…

• With older TDM connectivity we have islands of IP• This is not a good model for sharing unified

communication services among enterprises• However, with all-IP connectivity…

CLASSSwitch

TDMTelephone



Bridging the Islands…

IP

PSTN


CarrierIP

Infrastructure

CarrierSoftswitch

EnterpriseWAN Router

IPTelephone

TDMTelephone


EnterpriseWAN Router

IPTelephone

• …we can envision B2B enhances services• High Definition Voice• High Definition Video• Federated / Shared Presence State Information• Secured B2B Text Messaging

www.itexpo.com


You converged your internal network,

SIP Trunking converges your external network.

Documents

SIP Trunking…