HEATKEYS

YouTube is a place to discover, watch, upload and share videos.

This is the VoIP SIP Broker service. SIPBroker is a free open peering service.

Since 1991 CommuniGate Systems has developed carrier-grade Unified Communications software for broadband and mobile operators to deliver value-added services as SaaS, or Cloud-based services to the business communities. Over 150 million users across ...

3CX VOIP PBX - provides an easy to use, plug and play SIP - IP PABX for Windows. With a software based IP PBX you will save on PBX maintenance and halve your phone bill. Download the FREE edition today and break free from your proprietary phone syste...

Buy and sell electronics, cars, clothing, apparel, collectibles, sporting goods, digital cameras, and everything else on eBay, the world

Cisco (NASDAQ: CSCO) is the worldwide leader in networking that transforms how people connect, communicate and collaborate.

The Award Winning Business Phone Service over the Internet. OnSIP business VoIP service is a hosted pbx system that allows you to streamline your business communications. There’s no phone company hassle, no phone system to buy or manage, no contracts

MIT is devoted to the advancement of knowledge and education of students in areas that contribute to or prosper in an environment of science and technology.

Engage, Collaborate, Co-Create and Share your knowledge by asking and answering questions in the discussion forums, commenting on blogs, rating videos, and sharing tips and advice in the wiki-style documents on configuring, troubleshooting, and desig...

Packt Publishing is the leading UK provider of Technology eBooks, Coding eBooks, Videos and Blogs; helping IT professionals to put software to work.