FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source com ...

Telzio is the most flexible and easy-to-use business phone system in the world, with full PBX features, mobile integration, an ...

Asterisk is free software that transforms a computer into a communication server. Asterisk lets you build applications like PB ...

Use your iPhone, iPad or iPod touch to make and receive calls using your 8x8 Virtual Office phone service. Now your 8x8 busine ...

Dialpad offers a secure, enterprise cloud phone system, business VoIP, toll free numbers, cloud PBX & integrations with Go ...

Free Click to Call Receive web calls from your site free. Talkie is a free service to communicate with your customers visiting ...

YouMail turns visual voicemail into a personal assistant for handling all your missed calls. And it's FREE! Join millions of o ...

Truly Wireless is helping thousands of businesses leverage the power of cellular by turning smartphones into superphones. Trul ...

Elastix is an open source Unified Communications Server software that brings together IP PBX, email, IM, faxing and collaborat ...

Google Voice gives you one number for all your phones, voicemail organized in an email format, free US long distance calls, lo ...

Slingshot VoIP is a cloud-based communications provider that specializes in business VoIP service. Our platform delivers carri ...

VentureTel is here to revolutionize your definition of business communication. Presenting an all-inclusive package of cloud ba ...

MightyCall is a virtual phone system that will help your business stay connected with your customers. Quickly handle any clie ...

Zero is the leading business phone system built for forward-thinking IT. Our all-inclusive suite unites your phone system, voi ...

Yate is a softswitch (concept of separating the network hardware from network software). It supports VoIP protocols: H.323, ...