Is Fixed VoIP Right for Your Business?
By Silvana Lucido-Balestrieri
| 25. April 2024 |
VoiP, Technical
By S. Lucido-BalestrieriSilvana Lucido-Balestrieri
| 25 Apr 2024 |
VoiP, Technical
    By S. Lucido-BalestrieriSilvana Lucido-Balestrieri
    | 25 Apr 2024
    VoiP, Technical

    Is Fixed VoIP Your Best Choice? Differences vs. Non-fixed Voip

    In today’s digitalized world, Voice Over Internet Protocol (VoIP) technology os replacing traditional phone lines. In fact, the VoIP services market is estimated to grow at a CAGR (Compound Annual Growth Rate) of 10.2% until 2032.

    So if you’re considering fixed VoIP as a potential option for your business, or if you’re simply curious about it, this article will explain it to you.

    Key Takeaways

    • Fixed VoIP numbers require a physical address, tying you to a specific location, unlike non-fixed VoIP numbers. This restriction makes it hard to have a worldwide presence and get local phone numbers from different countries.
    • Fixed VoIP systems offer enhanced security and privacy for communications. While non-fixed VoIP numbers may be vulnerable to security breaches, appropriate measures can mitigate risks.
    • Fixed VoIP systems often incur higher expenses for international calls, in contrast with non-fixed VoIP, which typically offers more affordable international communication options. This cost factor is crucial for businesses with a global clientele.

    What Is Fixed VoIP?

    Fixed VoIP refers to Voice over Internet Protocol (VoIP) services that are associated with a specific physical location.

    Unlike traditional landline telephony, where the phone number is tied to a physical phone line, fixed VoIP allows users to make and receive calls using an internet connection.

    Think of a fixed VoIP number like having a traditional landline phone, but instead of being connected by physical wires, it operates over the internet.

    Fixed VoIP numbers are typically used by businesses that have a fixed physical address and seek the features of a traditional landline, but also desire flexibility and cost savings through VoIP technology.

    How does Fixed VoIP Work?

    Although fixed VoIP service doesn’t use traditional phone jacks, it connects to the building’s telephone network before using the internet for the call.

    Since there’s no physical line, a fixed VoIP business phone system uses the PSTN (Public Switched Telephone Network) to establish its assigned address before transferring the signal to the internet.

    While the telephone network is used to establish the address, most of the time the call is made over the internet.

    Indeed, reputable VoIP providers strive to minimize the time calls spend on the telephone network because it’s not very fast.

    Ideally, the call should quickly jump onto the telephone network before using the internet for the majority of the connection.

    What Is the Difference Between Fixed and Non-fixed Voip Numbers?

    There are significant differences between fixed and non-fixed VoIP numbers, such as the need for a physical address, security, and the price of international calls. Let’s take a look.

    #1 It Requires a Physical Address

    A fixed VoIP number is linked to a specific location, which implies that you must reside in the country to obtain a local number from there.

    However, non-fixed VoIP allows you to be wherever you want and use phone numbers with area codes from other countries. Even if you handle international clients from a single location, you can still appear to be based in those countries.

    Therefore, non-fixed VoIP numbers are key to providing your business with an authentic local presence.

    #2 International Calls Are More Expensive

    With fixed VoIP systems, international calls can be more expensive, which can be a significant issue if you need to communicate with people in other countries frequently.

    On the other hand, non-fixed VoIP systems provide affordable international calls, and it can be a huge plus for your business if you have clients worldwide.

    #3 It Is Secure and Reliable

    Fixed VoIP systems are considered secure because they are linked to a physical address, making it harder for fraudsters and scammers to mask their identity and location.

    On the contrary, non-fixed VoIP numbers were presumed to be vulnerable to hackers and fraud, as they are accessible from any internet-connected device. These days, that statement couldn’t be less accurate.

    While there are indeed security risks and vulnerabilities, these can be mitigated by implementing appropriate security measures. For example, using unique and strong passwords, changing them regularly, and implementing multi-factor authentication.

    YouTube video

    #4 It Ensures Faster Emergency Help

    If you make an emergency call, fixed VoIP systems can redirect it to the appropriate authority based on your physical address. This ensures you can get help quickly.

    However, with non-fixed VoIP systems, it’s more complicated as they do not have an associated physical address.

    #5 It Is Limited to a Location

    Since fixed VoIP systems are limited to a specific country and location, you won’t be able to use your numbers when traveling to another country.

    On the contrary, non-fixed VoIP systems allow you to use your numbers anywhere in the world, which is useful if you travel frequently or have an international presence.

    #6 The Setup Is Complex

    Setting up a fixed VoIP system is more complex and needs more time, as it requires robust network infrastructure, and typically involves installing and configuring specialized VoIP hardware, such as IP phones.

    However, setting up a non-fixed VoIP system is straightforward. You can request the number online from your VoIP provider and start using it without waiting for a phone to be delivered. This makes it an excellent option for businesses that need to start operating quickly.

    Fixed VoIP

    Non-Fixed VoIP


    Needs a physical address, tied to a location.

    No address is needed, usable globally.



    High if measures are implemented.

    International Calls



    Emergency Calls

    Directs based on address.

    Challenging without a fixed address.

    Location Flexibility

    Limited to one country.

    Works globally.


    More complex and slower.

    Easy and quick.

    Best for

    Businesses with a permanent physical location.

    Businesses that prioritize flexibility, cost-effectiveness, and easy setup.

    The Pros and Cons of Fixed Voip

    After seeing the differences, let’s summarize the pros and cons of fixed VoIP:

    Pros of Fixed VoIP

    • Local and short-distance communication is smoother.
    • They are traceable in emergencies, as they are linked to a physical address.
    • They provide transparency and enhance security.

    Cons of Fixed VoIP

    • Incoming and outgoing international calls are more expensive, making it difficult to reach clients abroad.
    • They are less flexible as they are tied to a specific geographical location.
    • They require more time and cost for setup.

    Is Fixed VoIP the Right Choice for Your Business?

    Fixed VoIP numbers suit businesses with a physical location needing a direct phone line tied to that address for top-tier security. They’re great for large-scale companies.

    On the contrary, non-fixed VoIP suits businesses with remote employees, operating in various locations and attending international clients. It offers the flexibility to make and receive calls from anywhere, anytime, without costly or complex setups.

    Hence, it’s perfect for international support centers, sales teams, e-commerce, retail, and tech companies.


    In summary, when considering if fixed VoIP is the right choice for your business, it’s essential to weigh the benefits and drawbacks outlined in this article.

    While fixed VoIP offers robust security and reliability, it may be less flexible and incur higher costs for international calls. 

    On the contrary, non-fixed VoIP provides global accessibility and affordability, making it suitable for businesses with remote operations or international customers.

    If you’re wondering which VoIP option is best for your business, our free e-book has you covered. Discover the perfect provider tailored to your unique needs and preferences. Click the button below to get started.

    A Comprehensive Guide to Selecting the Right VOIP Package for Your Business

    Fixed VoIP FAQs

    Is a non-fixed VoIP a cell phone?

    A non-fixed VoIP is not a cell phone. A non-fixed VoIP number is a phone number that is not assigned to a physical phone. Instead, it is assigned to a specific user and can be used to make and receive VoIP phone calls from anywhere in the world, as long as there is a strong internet connection

    Is non-fixed VoIP more budget-friendly?

    Non-fixed VoIP is indeed more budget-friendly compared to fixed VoIP for businesses due to several factors. Businesses using non-fixed VoIP can avoid costs associated with maintaining physical locations or office spaces, as non-fixed VoIP operates using cloud-based technology, reducing the need for expensive systems

    Can you call back a fixed VoIP number?

    Yes, you can typically call back a fixed VoIP number just like you would with a traditional landline number. Fixed VoIP numbers are assigned to a specific location or address and are designed to function similarly to landline phone numbers, allowing both incoming and outgoing calls from and to traditional landlines, mobile phones, and other VoIP numbers.