There are many advantages to VOIP Telephony. The core VOIP telephony advantages are listed for you below:

• VOIP is a much freer innovation than the standard phone system we use every day. This results in innovation progress running at market rates rather than the much slower pace of the multilateral International Telecommunications Union (ITU) committee process. This means more new advanced technology updates and at a much faster rate.
• The major VOIP telephony advantage is that it has a much lower cost. Generally a VOIP phone service will cost far less than the equivalent service from standard telephone service. This is due to normal ‘traditional’ phone services existing as government entities or monopolies. VOIP is also cheaper to run because it uses a single network to carry data and voice, which is particularly true when an existing under-utilized network capacity can handle the extra requirements of VOIP without the need for further costs. In some cases VOIP calls can be made for FREE; sometimes even international calls. Of course the internet connection is still paid for in order to utilize VOIP but as internet users already pay for this and no additional costs are required when using VOIP the VOIP calls are viewed as free. There are a few services that now provide a service for free VOIP calls such as Skype and Free World Dialup.
• There is much more functionality with VOIP when compared with standard phone services. VOIP makes it easy to do some things that would be hard to impossible with a traditional style phone system.
• Incoming phone calls get routed automatically through to your VOIP phone where ever you are on the network. Because of this you can take your VOIP phone with you on a trip and at any location you connect to the internet you will be able to receive all your incoming calls.
• A VOIP telephony advantage for call center agents with a VOIP phone is that they are able to work easily from any location that has an internet connection.
• As well as the usual voice conversation there is so much more that can be done with VOIP telephony. Information and control on a call is easily provided. You can send and receive data files or messages whilst in a voice conversation, audio conferencing is possible, manage address books and pass information regarding other VOIP users (i.e. friends and colleagues) online status with the possibility to add them in on a conversation.

There are so many VOIP telephony advantages and many of the services currently have free elements of their service that it is certainly worth investigating VOIP further. You very well may end up saving money on your phone bill!