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Copyright © 2006 VoEX, Inc. All Rights Reserved 1

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What is SIP?

What is SIP Trunking?

Sessions Initiation Protocol Signaling for multimedia sessions

over the Internet Setup Modify Tear down

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SIP is an application-layer protocol SIP trunks can be connected via any Layer 2 protocol

What is SIP Trunking?

IP

TCP UDP

H.323 SIP RTP DNS DHCP

ATM V.90 Ethernet MPLS

AALx PPP

SDP

Signaling Media Utility

Media

Coding

Application Layer

Transport Layer

Internet Layer

Physical / Link Layer

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What is SIP Trunking?

IP

TCP UDP

H.323 SIP RTP DNS DHCP

ATM V.90 Ethernet MPLS

AALx PPP

SDP

Signaling Media Utility

Media

Coding

Application Layer

Transport Layer

Internet Layer

Physical / Link Layer

SIP = Great Equalizer = Open market = Choice!

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Brief History of American Layer 1/2 Communications

1880 – 1984: American Bell / AT&T Essentially a monopoly

1948: Cable TV 1969: ARPANET

Precursor to the Internet – see Al Gore

1977: MCI allowed to compete (common carrier services)

1977: First cell phone test offering 1982 – 1984: Breakup of AT&T

7 Regional Operating Companies

Local service monopoly

1994: U.S. Government releases control of the Internet

What is SIP Trunking?

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VoIP trunks from service providers use SIP for call control and routing Enables IP/SIP connection to carrier

IP networks. SIP sets up and tears down calls

call is routed via the carrier’s IP network

Calls are handed off to a PSTN gateway for the last mile if they are bound for E.164 numbers.

On-net calls remain native, “pure” IP

What is SIP Trunking?

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What is SIP Trunking?

Service Provider BroadbandIP network

Enterprise

SIP Trunk

Other IP network

SIP + ENUM

PSTN

TDM

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Global Managed Service Provider

Pure VoIP peering Infrastructure

Carrier-grade Super Registry ENUM and PSTN phone numbers

Connecting any-to-any TDM, IP and Hybrid carriers.

About VoEX

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Blue Chip Customers

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Why SIP Trunking?

Save Money Today Take Advantage of SIP-

enabled Applications Ready for Prime Time

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Save Money Today Lower toll charges

One-time charge for on-net termination

Calls routed to the closest gateway for PSTN termination – may only incur local termination rates

Highly competitive rates for off-net domestic and international PSTN termination

One unified network for voice and data circuits

Reduced trunking costs

Reduced hardware costs

Efficient personnel usage

Other Cost-reduction Methods

Why SIP Trunking?

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SIP-enabled Applications Voice, Video, Multimedia

Desktop integration (Outlook)

Presence Follow-me services

“Dial Out”

“Peered” across network

Why SIP Trunking?

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Global Managed Service Provider

Pure VoIP peering Infrastructure

Carrier-grade Super Registry ENUM and PSTN phone numbers

Connecting any-to-any TDM, IP and Hybrid carriers.

About VoEX

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SIP Trunking ROI Analysis

Investment Requirements IP PBX

SIP Firewall

SIP Gateway

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IP PBX ROI “Internal” ROI

Internal Wiring

Moves, Adds, Changes

Administration

Applications

“External” ROI Trunking Costs

• TDM: Trunk vs. Extensions

• IP: Requisite bandwidth

Termination Costs

• TDM: Local, long-haul contracts

• IP: On-net transaction fee, On-net termination revenue, highly-competitive PSNT termination, often based on local termination rates

SIP ROI Analysis

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SIP Gateway (TDM Origination) “External” ROI

Trunking Costs

• TDM: Trunk vs. Extensions

• IP: Requisite bandwidth

Termination Costs

• TDM: Local, long-haul contracts

• IP: On-net transaction fee, On-net termination revenue, highly-competitive PSNT termination, often based on local termination rates

Why SIP Trunking?

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SIP Trunking ROI – Based on Real Customers

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Actual customer savings: 15% - 50% Breakeven: 0 – 90 days ROI (cost-savings/cost)

Depends on timeframe selected for savings

12% - 53%, first year

SIP Trunking ROI

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Global Managed Service Provider

Pure VoIP Peering Infrastructure

Carrier-grade Super Registry ENUM and PSTN phone numbers

Connecting any-to-any TDM, IP and Hybrid carriers.

About VoEX

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Thank You

Bill CartmillDirector Business Development

[email protected]

About VoEX