VOIP, PBX or Multi-Line: Which Business Phone System is Best for You?

The Blue Fox Blog
The Blue Fox Blog
VOIP, PBX or Multi-Line: Which Business Phone System is Best for You?

Business phone systems have transformed to a place of new sophistication. 

Traditional PBX systems, also known for complex on-premise networks, are now ‘hosted’ and multi-line phone systems have completely been digitized. 

Virtual VoIP service changed the game with call flexibility for remote workers.

But in spite of these positive changes, understanding the differences and value between different types of business phone systems for businesses can be challenging.

To reduce the noise and make it easier, we have created a guide to help you make sense of all your options. 

3 Types of Business Phone Systems

1.PBX Systems

A Private Branch Exchange System or PBX, sometimes referred to as an onsite phone system, is a centralized network of telephones connecting people within an organization and allowing an organization to send and receive phone calls. This type of phone system resides “onsite” an is managed by an internal team.

Medium to large sized businesses may choose PBX over multi-line systems because of advanced and customizable features of PBX systems over multi-line, as well as the continued control that the internal team can maintain related to updates, patches, and changes. 

Also, PBX can be managed off-site by a respective service provider like Blue Fox Group.

Another great advantage is that PBX doesn’t have line limits like the standard multi-line systems do - 2, 4 lines. 

Instead, multiple devices connect to a centralized system, which connects them to a Public Telephone Network (PSTN) via a business phone service provider.

Also read, Importance of Private Over Public Business Communication

Pros and Cons of PBX Systems

Pros and Cons of PBX Systems



An older term, Private Automatic Branch Exchange (PABX), meant centralized phone systems that consisted of human controlled units, who would switch call-lines to appropriate lines. 

PBX is the new standard term used today!

2.Multi-line Phone Systems

A basic phone line in your office limited to just one line.

If you receive several calls throughout the day, it is likely that the line will give off a busy tone. Most customers will not tolerate this type of inconvenience and they demand instant pick-up. 

For this reason, a multi-line phone system is your best bet.

Since small businesses use only a couple of extra lines and can’t afford an advanced PBX system, they can opt for simple multi-line systems, which are affordable as well as easy to use. 

As your business grows, you can upgrade your system to add a number of lines, although you should be aware that you are likely to incur additional costs.

Pros and Cons of Multi-line Phone Systems

Pros and Cons of Multi-line Phone Systems

3. VoIP Phone System

VoIP (Voice over Internet Protocol) is a system that uses an internet connection to make voice calls instead of traditional Integrated Services Digital Network (ISDN) phone lines. Theses types of systems are often referred to as hosted or cloud-based voice systems.

You may have seen this technology being used in personal-use-software like Microsoft Skype. 

VoIP companies promise advanced communication features in offices using IP (Internet Protocol) technology.

The major upside to VoIP service is that you receive a ton of services for a fraction of the cost of a PBX system. 

Hence, many businesses are now shifting towards cloud-based VoIP services for all their communication needs.

VoIP is a complete internet service, so your business needs to make sure that it receives high-speed connections to the cloud or else your VoIP will suffer. 

VoIP tends to be less expensive monthly or initially out of pocket than most PBX or multi-line systems because you avoid the large cash layout for hardware and installation charges that take place when installing a phone system on premise.

Pros and Cons of VoIP Phone System

Pros and Cons of VoIP Phone System

VoIP provides the complete package for small business implementation.

However, based on the office’s current infrastructure and technological needs, PBX or multi-line system can also prove to be a great solution for you.

Blue Fox Group can help you decide which business phone system will work for you.

We provide business phone services with on-premise, private cloud environment and pure-cloud based options in the following ways.

  • Geo-redundant data-centers
  • Scale gracefully from 75 to 10,000 users
  • Consistent employee experience
  • Private cloud software updates
  • Ring group opportunities
  • SD Wan enabled service

Interested in talking to an IT pro? Call Blue Fox Group at 1 (480) 941-8280 today!