What is PABX/ IP PBX/ VoIP PBX/ Hosted PBX/ Virtual PBX

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What is PABX/ IP PBX/ VoIP PBX/ Hosted PBX/ Virtual PBX

PABX system

 

 PABX (Private Automated Branch Exchange)?

This page discusses PABX which is a telephone switching system, a server that works automatically. Originally it was called PBX (Private Branch Exchange). Nowadays almost all Private Branch Exchanges are automated, that is why we call them PABX. If you read on, you can get to know the types of PBXs and their roles.

The PABX allows and controls the sharing of different phone lines between different communication devices. The channel between the devices are built up by SIP (Session Initiation Protocol) (Figure 1). It is centralized around a local network and may not need to be connected to a public phone network. PABX is usually used by call centers. The system provides callers a single access to multiple lines

The PBX

The PBX serves as a switching station for phone systems. Within an organization it connects phones and it can also connects them to PSTN (Public Switched Telephone Network). The server handles both the incoming and outgoing calls. Nowadays PBXs are automated, that means it selects lines automatically, and there is no need to handle them manually. Its advantages are for example the flexibility and easy setup.

PBX uses a so called dial plan which is an individual digit code.

There Are Four Kinds of PBX Servers:

  1. Analog PBX (The voice signal is not digitalized.)
  2. Digital (The voice signal is digitalized.)
  3. IP PBX/VoIP PBX (Transmits voice signals via IP network.)
  4. Hybrid (It has both digital and IP PBX features.)

The latest type of this kind of system is the VoIP PBX/ IP PBX (Telephone system, also used for call-switching).

The Roles of PBX

  • establishes connections between users
  • preserve connection
  • disconnects calls
  • Gives an account on statistics etc.

 

 IP PBX? (Internet Protocol Private Branch Exchange)?

It is a kind of PBX that works and makes connections through the Internet. It can be a hardware (physical object) or a software system (installed on a computer). Its task is to carry both video and audio data over a data network (e.g. the Internet). Read about the definition of IP PBX, learn how many types of PBX exist and how they really work in practice.

The IP PBX is a business telephone system. This system switches calls among VoIP users on local lines. The users may use an external phone line.

The IP PBX system can work with PSTN (Public Switched Telephone Network). It switches calls between a user who uses VoIP and one who uses an ordinary phone or it can switch calls between users using ordinary phones. Analog and VoIP phones. The VoIP phone can call the analog phone through a gateway, and it can call another VoIP phone with the help of the SIP (Session Initiation Protocol) protocol. Extra functions can be added to the system like video conferencing, live calls, IVR (Interactive Voice Response) etc.

The Four Types of PBX:

  1. Analog PBX (Signals are not converted into digital codes.)
  2. Digital (Signals are converted into digital codes.)
  3. IP PBX/VoIP PBX (Signals are transmitted through IP network.)
  4. Hybrid (Mixture of Digital and IP PBX.)

The latest type of this kind of system is the VoIP PBX/ IP PBX that uses Internet to make calls.

The IP PBX system is a software based PBX system that carries out tasks and services that a PABX server cannot provide like packet-switching.

How It Works

The IP PBX is like a proxy server. If you want to make a call from a VoIP phone or a Softphone to another VoIP phone you can do it through the Internet but if you want to call a traditional or mobile phone you can call it through PSTN.

What You Need

  • Strong Server Configuration

To be more efficient you can create rules for the order and number of the phones.

  • PSTN Connection

If you want to make a call from a conventional or mobile phone, you only need to have an adapter attached to the PBX system.

  • Local Area Network (LAN)

The communication will be easy if you install a PBX system on your Local Area Network.

The Roles of PBX

  • connection establishment among users
  • maintenance of connection
  • ends connection between participants
  • contains data

Features of IP PBX

  • Voicemail bypass
  • Call-out
  • Call-pick up
  • Softphone
  • Fax to e-mail etc.

 

VoIP PBX (Voice Over Internet Protocol Private Branch Exchange)?

The VoIP PBX (internet-based telephone system) can be a physical object or a software on a computer. It is responsible for transferring voice and video data over a data network, like the Internet. On this page you will be informed about VoIP PBX that can help businesses to increase their productivity since it has features that helps work at the company and therefore it can make the process of work more effective.

The VoIP PBX, is also known as an IP PBX, it’s a telephone system used by different businesses. PBXs can connect VoIP calls with each other and with ordinary phone users and vice versa. Additional functionalities can be added to the VoIP PBX like live calls, video conference etc.

How It Works

The VoIP PBX is similar to a proxy server: If you initiate a call from a VoIP or a Softphone to a VoIP phone you can do that via the Internet. If you call an ordinary or mobile telephone you can call it via PSTN (ordinary telephone system)

The latest version of PBXs is the VoIP PBX/ IP PBX that uses the Internet to make calls.

Task of PBX

  • set up connection
  • maintain the connection
  • disconnect
  • data recording etc.

Some Features of VoIP PBX

  • Unlimited Voicemail Boxes
  • Caller ID customization
  • Call Transfer
  • Call Conference
  • Outlook Integration etc.

 

Hosted PBX (Hosted Private Branch Exchange)?

This article will help you to get to know the definition of Hosted PBX that is also called Virtual PBX. Nowadays, every business needs to have a reliable phone system that provides good quality services since a phone system can help to improve both internal and customer relations. Even small businesses can afford a subscription because Hosted PBXs offer low-cost services.

Hosted PBX is a simple PBX where you can subscribe for a telephone center service via the Internet. After you have subscribed you have access to the phone center. Your access depends on your subscription. If your company has a call center and you want to have a certain number of lines, you can subscribe for a package where you can have the number of lines you need.

You will have an account that enables you to use these phone lines. You will have a telephone number where users can reach you. If someone wants to call you, the phone center will transmit the calls to your phones by a certain kind of strategy. You have the chance to adjust the strategy in the phone center to your needs. For example you can set all phones to ring when someone calls, or just one line after one another.

  • you can customize music on call-holding
  • you can send fax messages without a fax machine
  • offers free conferencing
  • fax messages and voicemails are sent to your e-mail address
  • Wherever you are in the world you can use the phone system you subscribed for but you need an Internet connection to do so. It connects through a VoIP provider and therefore the costs are low.
  • responsible for handling the equipment needed for hosted PBX services

 

Virtual PBX (Virtual Private Branch Exchange)?

Virtual PBX, in other words hosted PBX. In today’s world, almost every business needs a phone system that offers high quality services. With the help of a virtual PBX, even a small business can adopt a technology that bigger corporations use in particular. If you have a virtual PBX you do not have to spend on a physical phone system which is more expensive. Virtual PBX can help to make communication better and faster within a company so it can be more productive.

Virtual PBX is a service that is provided by a service provider. If you use Virtual PBX, your phones connect to the PBX system of the service provider via the Internet (Figure 1). One advantage of Virtual PBX is that you do not have to deal with the maintenance of a PBX system and one disadvantage of this is that if there is no Internet connection, your phones in the office will not work

 Virtual PBX, in other words hosted PBX. In today’s world, almost every business needs a phone system that offers high quality services. With the help of a virtual PBX, even a small business can adopt a technology that bigger corporations use in particular. If you have a virtual PBX you do not have to spend on a physical phone system which is more expensive. Virtual PBX can help to make communication better and faster within a company so it can be more productive.

Virtual PBX is a service that is provided by a service provider. If you use Virtual PBX, your phones connect to the PBX system of the service provider via the Internet (Figure 1). One advantage of Virtual PBX is that you do not have to deal with the maintenance of a PBX system and one disadvantage of this is that if there is no Internet connection, your phones in the office will not work

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