Your office phone uses pbx technology to connect you to your desk when you are in the office. However, you might wonder why we need it when you have a mobile in hand. But if your mobile is strictly for personal use. Official communications on mobile can be made from remote locations too as permitted. Moreover, private branch exchanges of PBX connect your desktop telephones on a common network. Moreover, telephone calls can be done within stations to make free calls internally. To know more visit us - http://watchthebrands.com/how-to-choose-voip-pbx-solutions-for-businesses-what-to-look-for/All Rights Reserved