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Pro’s and con’s of VoIP vs on prem phone system.

Voice over Internet Protocol (VoIP) and on-premises phone systems are two different approaches to voice communication. A VoIP system is a digital phone system that uses the internet to transmit voice data, while an on-premises phone system is a traditional phone system that uses physical telephone lines. Both systems have their own advantages and disadvantages, and choosing the right one for your business can be a difficult decision. In this blog, we’ll explore the pros and cons of VoIP vs on-premises phone systems to help you make an informed decision.

Pros of VoIP

  1. Cost-effective: VoIP systems are often more cost-effective than traditional phone systems because they do not require expensive hardware or maintenance. You can make calls over the internet, so there are no long-distance charges or per-minute fees.

  2. Scalability: VoIP systems can be easily scaled up or down as per your business needs. You can add or remove users as your business grows or downsizes.

  3. Mobility: VoIP allows you to make and receive calls from anywhere with an internet connection. This feature is especially beneficial for remote workers or businesses with multiple locations.

  4. Advanced features: VoIP systems offer advanced features like call routing, auto-attendant, voicemail-to-email, and more, which are not available in traditional phone systems.

Cons of VoIP

  1. Internet connectivity: VoIP systems depend on internet connectivity. Poor internet connections can lead to low call quality, dropped calls, and other issues.

  2. Security: VoIP systems are more vulnerable to security breaches than traditional phone systems. Hackers can easily access VoIP networks and steal confidential information.

  3. Reliability: VoIP systems rely on electricity and internet connectivity. Power outages or internet service disruptions can lead to complete downtime of the system.

Pros of On-Premises Phone Systems

  1. Reliability: On-premises phone systems are not dependent on the internet for connectivity. They are powered by the local grid and are not affected by internet outages.

  2. Security: On-premises phone systems are not vulnerable to internet-based security threats, making them more secure.

  3. Call quality: On-premises phone systems generally offer better call quality than VoIP systems, especially in areas with poor internet connectivity.

Cons of On-Premises Phone Systems

  1. Cost: On-premises phone systems require expensive hardware and maintenance. You will also have to pay for long-distance charges and other fees.

  2. Scalability: On-premises phone systems are not easily scalable. Adding or removing users can be a complex and expensive process.

  3. Limited features: On-premises phone systems offer limited features compared to VoIP systems. You may not have access to advanced features like call routing, voicemail-to-email, and more.


Choosing between VoIP and on-premises phone systems depends on your business needs and preferences. If cost-effectiveness, mobility, and advanced features are your priorities, then VoIP is the right choice. However, if call quality, reliability, and security are your top concerns, then an on-premises phone system may be the better option. It’s always best to consult with a professional telecommunications provider who can help you choose the right system for your business. Find out how we can help protect you.



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