Today, in the modern office, even a small company can be found several different channels of communication with the outside world – that landline phones , mobile phones, phones connected through the Internet and Sip trunking from service provider etc. [UAE Service provider Etisalath already start providing sip trunking to their customers]. All this would be nice to combine into a single system to access all these channels by any employee, regardless of their location. Plus you should take care about the customers, giving them the opportunity to call at a convenient time and get the right information. Vector Digital System L.L.C help you achieve all this with yeastar mypbx Ip phone system.