Understanding the Basic of Virtual Office Phone Systems – PBX, IP PBX, DID Number, Toll Free and VoIP

Virtual Office Phone Systems

First of all, attention made to people at call centers where they are connected with virtual office phone systems in the modern business environment.

As we know that Business can run without in and out but not without communications so the real key for that here at PBXRoot.

This effective way out comes with the high quality of voice calling at any locations in the whole world with the small handy setup of Hosted Dialler.

We are here to guide basics of Virtual Office Phone Systems with PBX, DID Number, Toll-Free, and VoIP that can reduce the maintenance of traditional office setup.

Many businesses are accepting cost effective way on the trot enterprise because it allows them to free up project funds.

Private Branch Exchange System

PBX stands for Private Branch Exchange System that is operated by an enterprise that may be suppliers or a service provider rather than a telephone exchange company.

The users of PBXRoot Phone system reach out the companies’ call and may also converse with the outside world with different channels like VoIP, ISDN or Analog.

Conventionally, small business PBX is a telephone switching system that supervises the in and out calls for internal users of the company.

The virtual office phone systems are associated with Public Phone System and robotically it drives the incoming call to a detailed extension and also shares or manage the multiple call lines.

Any conventional PBX needs two networks one is for voice and other is for data services.

The Attention made to 100’s of people at call centers where they are connected with virtual office phone systems in the modern business environment.

Attention made to 100’s of people at call centers where they are connected with virtual office phone systems in the modern business environment. runs on an IP data network which is a way to save data cost and diminish the network management. A user can also use IP Phones, Soft Phones and landline phone on an IP PBX phone system.


  • Required no Hardware
  • Highly Compatible with Smartphone and landline
  • Simple and Easy-to-use
  • Internal text Messages Compatibility
  • Non-technical Administration
  • Data Security and Encryption
  • Easy to switch to any location


  • Occupies large Space
  • Calls are delivered to fixed Landline, not to mobile
  • Hidden Usage charges
  • Lock-in period for new users

IP PBX (Internet Protocol Private Branch Exchange)

PBX has moved to IP communication and is now using protocols that can easily integrate with other application.

An IP PBX (Internet Protocol Private Branch Exchange) is a PBX phone system that uses IP data networks to communicate and manage call switching, internal route calls, and other text messaging services.

IP-PBX technology comes with advanced communication features like voicemail to email and has an ability to connect to traditional PSTN lines because users don’t need to change carriers. An IP-PBX business phone system includes one or more IP-phones and one optional gateway to connect the existing PSTN lines.

The IP-PBX server states a catalog directory of IP-Phones and their corresponding SIP addresses with LAN calls or routes with a VoIP gateway or a VoIP service provider.


  • Network Resides on your existing LAN
  • Lower Cost of VoIP Routing
  • Easier to configure and install
  • Easily connected with Portable Devices
  • Ability to receive and responding to inbox messages
  • Remote Extensions
  • GUI of IP-PBX is User-friendly


  • Multifaceted hardware requirements
  • Extensive remoteness calls based on the Internet


DID Number

DID (Direct Inward Dialling) Numbers are virtual numbers which offer route calls directly to existing telephone lines.

With this DID number any organization can make a direct call to numerous of extensions in that order they only have to maintain their single DID number.

This term was created only to reuse numbers of physical phone lines for calling to different active phone numbers. An organization may use this unique DID number to track their all inbound calls.


DID Number


  • Anyone can make a call to extension
  • Cost Effective for Business
  • Improve the local presence
  • DID number is free from geographical


  • High Programming
  • Used with SIP trunking

Toll Free

Virtual Toll-Free Number, one special phone number that is free for calling and May forwards the calls to one of the default setting number registered by the owner of the toll-free number.

These Virtual toll-free numbers are used with organization’s PBX (Private Branch Exchange) System.



  • Requires no hardware
  • Low-Cost Effective
  • Call forwarded to Physical Lines
  • Routes are directed to PBX or IVR
  • Hassle-free Business
  • Create Brand Identity


  • High-level service maintenance
  • Leverage IP Network


VoIP (Voice over Internet Protocol) is a way of delivering voice conversation and multimedia service over the Internet.

VoIP the method of taking analog audio signals which mean that when someone communicates on the telephone then this VoIP convert that data into digital over the Internet.

To make a free phone call VoIP turns internet connection to the virtual network over the internet.

Methodologies which any organization follows to deliver voice calls over the internet are local area networks (LAN) or any wide area networks (WAN).


  • Cost Saving
  • Free PCs Voice calls
  • Computer Based VoIP environment
  • Offers Web Interface
  • Broadband Connection Integration
  • Unlimited VoIP to VoIP Calls
  • Support Conference Calling


  • No Sound Quality Guarantees
  • Latency issues
  • System Compatibility

Bottom Line

Virtual Office Phone System has been considering as the main aspects of every organization and makes them understandable.

Technology has taken the world to high productivity at which company will be achieving great Virtual Phone System. So the Virtual Office Phone System is highly setup within the organization and rivaling the workspace at their box.

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