HEATKEYS

Hosted PBX and Business VoIP phone service, for companies of all sizes. Virtual PBX including voicemail to email, Find-me, follow-me, virtual numbers, free long distance, and much more.

XO Communications provides cutting edge Business Telecommunications technology. Learn more about Business Telecommunications from XO Communications.

ShoreTel Sky provides hosted VoIP phone systems and applications with an experience that businesses love.

Virtual PBX small business phone system: The hosted PBX with Fortune 500 features and low up-front costs now offers business VoIP

Windstream Business is a leading provider of IP-based voice and data, MPLS networking, data center, cloud computing and managed hosting services and systems.

MegaPath Provides Simple, Cost Effective Solutions For Business Broadband T1 Internet, Ethernet, MPLS, Voice & Data VoIP Services. Test Availability

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Metaswitch

Phone systems to power your business. Turnkey business phone systems, IP PBX phone systems, VoIP phone systems, and Asterisk telephony software.

8x8, Inc. (Packet8) offers VoIP business phone service to small and medium sized business.

Telesphere offers VOIP business solutions such as office phone systems, key phone systems, IP PBX phone systems, IP PBX VOIP & virtual PBX systems.

EarthLink, Inc. (NASDAQ: ELNK) is a leading IT services and communications provider to more than 150,000 businesses and one million consumers nationwide. EarthLink empowers customers with managed services including cloud com...

ShoreTel