How IP PBX system phone works?

PBX system phone

IP PBX Systems contains one or more SIP or VoIP phones, an IP PBX server as well as VoIP gateway. It works in a similar manner like a proxy server. The PBX stands for the private Branch Exchange that helps the person in connecting the calls, especially for the business purpose. The clients when need to call by using software or hardware-based phones they request to the IP PBX server to connect the call. The system has the entire phone saved and the complete directory that can help the user to connect the call. It uses SIP address to connect the call. They can make both internal call and the external call by the help of VoIP system.

Elements of PBX system

The PBX system works with two main elements that include

  1. Lines also called as the trunks that connect with the PSTN through a telephone company

The main purpose of the system is to provide the access to limited resources. As in any business system, there is the requirement of the multiple phone system. Rather than using the multi-system, the PBX compile the company’s phone in one unit. The early system was known as switchboard. The operator attends the phone and connects the line with a particular department or the person so it is an easy way to make the business phone connection manageable and easy to handle. Now the PBX system is advanced and uses electronic system to access the lines and connect with the particular person.

How the system works

  • The center of the system contains the IP PBX, as the operator has to make the call he clicks on the corporate network option. This is known as the company’s local network. The computer runs the SIP clients through this network system.

This is how VoIP phone works and helps the client to connect with another user in the call. It is basically the communication or the business phone system that enables the person to connect to make the business calls. It has internal traffic system that controls the outside world by acting as a gatekeeper. This is an advanced system that has to make the business phone connection simple but with high technology so that the transferred calls are permit or denied according to the settings. There is the system of voice messaging and call queuing also available.

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