Asterisk is a free and open source framework for building communications applications. VoIP (voice over internet protocol) has been a game-changing technology for companies of all sizes and industries. Not only can you save a great deal of money by not paying for landline phones, you can also take advantage of VoIP’s improved scalability, ease of installation and integration with your other business systems. In order to make full use of these benefits, however, it’s important to choose the proper phone solution for your enterprise network. Having a larger network from an established, experienced VoIP vendor will enable you to receive better service with a richer array of features. Below, we’ll go over some of the top choices for enterprise VoIP and IP telephony providers and the features and advantages of each one, so that you’ll have all the information you need to make the right choice for your organization.