If you’re considering a switch to Voice over Internet Protocol, you may have heard the acronym SIP. What is SIP, and why is it important? Read on to find out more.

What is SIP?

SIP stands for Session Initiation Protocol, and is the technology that allows you to make telephone calls over the Internet. In other words, SIP is used to initiate a communications session over the Internet, and makes it possible for data to be transferred between parties. It also works well with other protocols, including those that govern email and the Internet in general.

Getting Started with SIP

To use Session Initiation Protocol, you’ll need a SIP address and SIP client. A SIP address is a unique code that identifies each user on a particular network, and is similar to a traditional telephone number. In fact, SIP addresses are often translated into phone numbers to make things easier. The SIP address is really a route to the SIP provider’s equipment that initiates communication. The SIP client can be a software package, a SIP compliant endpoint, or a SIP capable PBX. These are the end devices that the communication takes place over. Generally they will be a soft phone on a PC or Mac, or a physical telephone.


There are some definite advantages to using SIP, including:

  • Requiring less support and maintenance
  • Reducing costs by eliminating the need for separate circuits for voice and data
  • Supporting multiple forms of communication, including video conferencing and instant messaging
  • Providing greater flexibility with regards to how you use your telephone service
  • Allowing for greater control over employee calls
  • Improving the quality of calls by creating dedicated “channels” for each user

SIP can help your business operate more efficiently, while also saving you a great deal of money. If you’d like to know more about Session Initiation Protocol or VoIP phone service in general, please feel free to contact TelWare at 1-800-637-3148 or TelWare is a national leader in the installation of voice, video, data and unified communication solutions. TelWare is an Authorized Avaya Partner and Star2Star Dealer.
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