Voice over Internet Protocol (VoIP) can allow you to:
Dramatically reduce the cost of communications, especially for interstate or international communications - VoIP uses the Internet instead of expensive long distance toll charges
Make and receive calls from multiple devices--for instance, on a dedicated phone, your PC via a software-based phone, or even a mobile phone with VoIP capabilities
Add extensions to your phone - You can provide a local number or extension for all your staff without additional costs or cabling
Maximize investments already made in your company's network infrastructure - The same network that handles internet and email can now accommodate voice as well
Be more productive and efficient by giving your employees the ability to receive and make calls anywhere with a data connection
Reduce the complexity associated with having to manage multiple networks and devices for communication - A company can potentially set up their office network so that each employee can use a single device such as a computer or a smart fixed or mobile phone to handle everything from email, chat, messages, faxes, and more
Video conference and screen share
Unify your communication channels, streamlining communications and information management--for instance, marrying email with fax and voice in one inbox
Employ presence technologies that come standard with VoIP phones and VoIP communication systems - This technology can tell colleagues about your presence or give you info on the status and whereabouts of your staff
Employ intelligence into how your calls are handled, such as: providing automatic call routing based on the number, time of day, etc; providing an interactive voice response when a call comes in, such as voice prompts that guide callers; call reporting; and more