The calls are made and received by telephone handsets, not through conventional phone networks. It connects to the internet. The VoIP phone receives calls from the router. The advantage is that since you are officially making calls over the Internet, you won't have to shell out phone charges. A laptop with a browser and a web connection are all that are needed. You might choose the Cloud to eliminate concerns about the PBX system's installation costs. Contact PABX Installation Dubai.