With advancement in Technology, Telephony has seen a lot of change over the years. The older complete telephony system that is broadcasted through analogue PABX do still exist but IP infrastructure which the following advantages, is the order of the day and you are gladly provided either.
What is an IP PBX?
An IP PBX is a complete telephony system that provides telephone calls over IP data networks. All conversations are sent as data packets over the network.
The technology includes advanced communication features but also provides a significant dose of worry-free scalability and robustness. The IP PBX is also able to connect to traditional PSTN lines via an optional gateway – so upgrading day-to-day business communication to this most advanced voice and data network is a breeze!
Enterprises don’t need to disrupt their current external communication infrastructure and operations. With an IP PBX deployed, an enterprise can even keep its regular telephone numbers. This way, the IP PBX switches local calls over the data network inside the enterprise and allows all users to share the same external phone lines.
How it works
Figure 1 – How an IP PBX integrates into the network
An IP PBX or IP Telephone System consists of one or more SIP phones, an IP PBX server and optionally a VoIP Gateway to connect to existing PSTN lines. The IP PBX server functions in a similar manner to a proxy server. SIP clients, being either soft phones or desk phones, register with the IP PBX server, and when they wish to make a call they ask the IP PBX to establish the connection. The IP PBX has a directory of all phones/users and their corresponding SIP address and thus is able to connect an internal call or route an external call via either a VoIP gateway or a VoIP service provider.
Benefit #1: Much easier to install & configure than a proprietary phone system:
An IP PBX runs as software on a computer and can leverage the advanced processing power of the computer and user interface as well as features. Anyone proficient in networking and computers can install and maintain an IP PBX. By contrast, a proprietary phone system often requires an installer trained on that particular system!
Benefit #2: Easier to manage because of web/GUI based configuration interface:
An IP PBX can be managed via a web-based configuration interface or a GUI, allowing you to easily maintain and fine-tune your phone system. Proprietary phone systems have difficult-to-use interfaces which are often designed to be used only by phone technicians.
Benefit #3: Significant cost savings using VoIP providers:
With an IP PABX, you can easily use a VOIP Provider for long distance and international calls. The monthly savings are significant. If you have branch offices, you can easily connect phone systems between branches and make free phone calls.