EarthLink BusinessCorporate Overview

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Company Mission

Anytime, anywhere, EarthLink keeps customers connected.

Our leading-edge Internet, communications and managed IP services deliver the superior and secure experience our customers

value and trust.

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Company Summary

• EarthLink, Inc (NASDAQ: ELNK) is a leading provider of Internet Protocol (IP) infrastructure and services to medium-sized and large businesses, enterprise customers, and over 1.5 million residential customers across the United States.

• EarthLink Consumer is a leading Internet Service Provider connecting people to the power and possibilities of the Internet.

• EarthLink Business provides a comprehensive suite of nationwide IP network solutions, voice and managed services supported by an experienced team of professionals focused on best-in-class customer care. Our cost-effective, reliable services help organizations of all sizes and across industries including retail, healthcare, finance and government.

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Company Summary

Strong Financial PositionEarthLink (NASDAQ: ELNK) has generated over $1 billion dollars in revenue over the most recent twelve months and is well-positioned to strategically support the needs of customers going forward.

Stats and Facts− Customers: Over 1.6 million− Revenue: Over $1 billion (most recent 12 months)− Employees: Over 3,000− EarthLink Business Infrastructure:• Operates a nationwide IP network with underlying fiber

assets in 30 of the top 50 MSAs in the country• 1,322 Central Offices Nationwide• Fiber Optic Network

− 27 states− 71 Metro Rings− 55 IP and circuit-based switches− Over 28,000 Miles in Total Fiber Transport

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● One of the nation's largest B2B providers of IP services, integrated voice and data communications and equipment solutions.

● We serve more than 150,000 organizations, with specialized applications for many industries including retail, healthcare, financial institutions and state governments.

● The combination of Deltacom’s southeast infrastructure, the New Edge nationwide network, and One Communications, one of the largest providers in the Northeast, mid-Atlantic and upper Midwest, creates one of the nation's largest business-to-business providers of IP services, integrated voice and data communications, and equipment solutions.

About EarthLink BusinessTM

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What Some of Our Customers Say

“Our agency is committed to strengthening communities and families,” said Joe Alberts, 4C’s Director of IT. “By leveraging new technology through Deltacom’s call center and networking solution, we are able to more efficiently deliver on that mission and in turn continue to expand our programs to help additional families and children across Florida.”

“We believe in providing our customers with an experience worth repeating,” said Rocky Wiggins, Senior Vice President and Chief Information Officer of AirTran Airways. “Deltacom has proven they understand that philosophy. Other communications vendors should strive to emulate the accessibility and flexibility Deltacom Business offers.”

“The Department of Management Services works daily to provide smarter, better, faster services to our customers, and we are pleased that our Telecommunications Division with the help of Deltacom identified this solution,” said DMS Secretary Linda H. South. “It is critical that the Agency for Workforce Innovation has tools to increase its efficiencies during this time when their customers’ needs are at an all-time high.”

“GNC has lowered payment card processing fees, saves over $300,000 annually by eliminating phone lines, and now supports critical retail applications with its New Edge MPLS network,” explains Don Fogal, Director of IT, GNC.

• Operates a nationwide IP network with underlying fiber assets in 30 of the top 50 MSAs in the country

• Over 1,300 Central Offices/Collocations Nationwide

• Fiber Optic Network

– 27 states

– 71 Metro Rings

– 55 IP and circuit-based switches

– 7,916 Metro Fiber Miles

– 20,813 Non Metro Fiber Miles

– Over 28,000 Miles in Total Fiber Transport

Network Infrastructure

Nationwide NetworkNationwide NetworkCore Network Nodes

Nationwide NetworkMulti-Service Access POPSNationwide Network

MPLS BackboneNationwide Network

MPLS Backbone and Fiber Infrastructure

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MPLS Networks

● Multiprotocol Label Switching (MPLS) – Consolidate all traffic on a single network– Prioritize voice, video and other data applications– 6 Classes of Service (CoS)– QoS intelligence is built into the network– Full-mesh topology– Support multiple routing protocols– Reduce transit delays and transaction times – Quickly add new locations– Reroute traffic priorities on the fly

Industry Leading Technology Partners

EarthLink Business Solutions

• MPLS Networks• Integrated voice, data

and Internet• Long distance• Conferencing• Internet access• Data• Mobile• Systems• Self-service account

management portal

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Integrated Voice, Data and Internet

• Simpli-BusinessSM

– Managed network services, IP-based NEC phone system and phones

– No upfront equipment capital required

• IP CompleteSM

– Line side service up to 24 lines

● Dynamic bandwidth from 1.5 to 6.0 mbps

– PRI service with up to 46 channels

● DID

● Dynamic bandwidth from 1.5mbps to 50mbps Ethernet

• Simplici-TSM

– Lines, channelized trunks with DID or channelized PRIs with DID

– Dynamically allocated Internet in speeds up to 6.0Mbps

● INET– Direct access to the Internet

via the EarthLink Business IP network and peering points

– Ethernet access available

– Email hosting

● Available options– Unlimited local calling

– Voicemail

– Web Hosting

– Online Faxing

– Conference calling bridge

– Competitive long distance plans

– Toll free services

– Directory assistance

– Operator services

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Long Distance, Conferencing and Mobile

● Toll-free services– Basic and enhanced features

including a wide range of routing features

● Converged Long distance– Share long distance and mobile

minutes OR

– Long distance packages

– Additional minute buckets

● International calling– Competitive pricing to more than

200 countries

– Origination from over 63 nations

● Conferencing– Reservationless, operator

assisted and web-based options

● Simpli-MobileSM

– Business-class mobile voice, hosted email and multimedia capabilities

– BlackBerry® smartphones and feature-rich Kyocera devices

– Email service options

– Converged minutes or personal minute packages

– Wide range of accessories (batteries, skins, cases, headsets and cards)

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Systems

● IP telephony & messaging solutions

– Equipment enabled converge voice and data networking

– Multimedia unified communications and presence management

– Centralized management of administrative functions

● Contact center solutions

– Advanced equipment enabled applications allow agents to efficiently interact with customers

– Single interface for blending inbound/outbound voice, email, web chat and IM customer interactions

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Account Management Portal

● Supplements top notch customer service

– Self-service account management portal

– Available online 24 hours a day, seven days a week

● Provides maximum visibility into your EarthLink Business account

– Create a billing inquiry, service ticket or check status of open inquiries or issues

– Examine a library of online resources, from FAQs to equipment user guides

– View your EarthLink Business services and account detail

– Access email

– Real-time toll-free, DID and line feature management

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Key Differentiators

• Personalized support: We act as an extension of your IT staff

• Leading IP infrastructure• Nationwide footprint and flexible product set   • Fully meshed MPLS network• Facilities-based business-class voice, Internet and data

service • Comprehensive online portal that consistently monitors

your network and automatically opens trouble tickets• One provider means one point of contact across all of

your business locations, along with consolidated billing• Proven service provider across multiple industries• Industry-leading Service Level Agreements• EarthLink growth engine with access to capital for

network upgrades, new technologies

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Why EarthLink Business?

● Commitment to delivering an outstanding customer experience

– Dedicated account management complemented by your self-service option for account management

– Knowledgeable staff committed to providing an experience worth repeating

● Single business communications provider

– Efficient and cost-effective, facilities-based business-class voice, Internet and data service choices that you can trust to support your business communications infrastructure

– Easy to manage, single provider, single invoice