VoIP offers a complete replacement to the traditional office phone system and analogue or ISDN lines. An VoIP system uses your existing network and the Internet to provide company-wide telephony, using VoIP technology instead of regular phone lines or a traditional PBX. This can save on line rental, provides flexibility, reduces call costs, maintenance and increases efficiency.
IP Phones can be placed anywhere in your office, or remotely around the world to provide one seamless phone network for your business. Wherever you have an Internet connection, you can have an extension on your IP PBX. All pure IP calls are free of charge; for calls to the conventional phone network (PSTN) you route via an ITSP ‘Trunk’ for low cost calls.
In a pure IP environment, the an VoIP system is installed onto your LAN together with IP telephones. All devices are connected over your LAN using your existing Ethernet network connections. The VoIP can support a large number of IP extensions – these can be IP Phones, SoftPhones or even standard analogue phones (using a converter), users can be local or ‘remote’. As it uses your regular network, you don’t need special extension wiring – just your existing Ethernet switch with adequate ports (assuming you are using IP phones). A traditional PBX with 50 extensions would take up a whole cabinet and need a lot of wiring!
Once installed, all extensions can call each other of course and calls can be transferred, diverted and all other normal features of a PBX. Extensions do not have to be local (in the same office as the IP PBX) – they can be anywhere in the world, and still be seamless so that calls can be made between to transferred to extensions whether they are local or remote. Similarly, incoming calls can be routed to any extensions, whether they are local or distributed in many remote locations – anywhere with an Internet connection.