A virtual PBX is a cloud-based telephony solution that provides businesses a modern and flexible alternative to traditional hardware-based phone systems. Through this platform, all telephone calls are centrally managed using the internet rather than standard phone lines. http://cse.google.co.mz/url?sa=t&url=http%3A%2F%2Fwww.monema.es%2Fcentralita-virtual%2F