How Can a VoIP System Call a Landline Number and Vice Versa?
27th February 2020The total revenue of the VoIP industry in America was $14 billion in 2019. It’s an industry that’s growing all the time and with good reason. Yet the public perception of how VoIP works is still a bit fuzzy.
One common question is “can a VoIP call a landline?”
The answer is yes, it can. You can call a landline number from your business VoIP line without any issues, but how does it work? Read on and find out!
How VoIP Connects to a Landline Number
Calling a landline number on your VoIP phone might seem odd. These are two different services, right? How can a digital number possibly connect to a traditional line?
The answer is through a clever interface.
The Difference Between VoIP and Landline Calls
When you call someone on a landline number, your voice is transmitted through the lines. You need a constant connection to the person on the other end of the line.
If the line drops, the call cuts out. That’s it.
When you call VoIP to VoIP, the data is sent as packets of information. This means that the line isn’t constantly kept open, instead, it is used when data is being sent.
So what’s the secret? How do you call a landline from a VoIP phone?
How Calling a Landline From a VoIP Works
When you call a landline from a VoIP phone, the call travels across the internet as far as it can. It then needs to enter the Public Switched Telephone Network, at least at present, as BT is switching this off in 2025.
When it enters the PSTN, it goes through a process called address translation. This changes the destination IP address to a phone number.
Do You Need to Pay Extra to Call a Landline Number?
Calling a landline number typically incurs extra charges. This is because your call still has to travel over the traditional phone lines for the duration of its journey.
However, VoIP systems can still save you money, whether you want one for business or your home. It’s not the only advantage of VoIP lines either. Let’s take a look at some more.
The Advantages of VoIP
There are a whole host of advantages of using VoIP for your business. In this section, we’ll explore some of the most captivating ones.
It’s Cheaper
VoIP lines often cost less than half what a business phone line would cost you. Calls are also usually cheaper.
Can Be Upscaled
VoIP is easy to scale up as your business grows. You don’t need to have a new physical line installed to your business. It’s as simple as buying a new phone and asking for another line.
Amazing Features
VoIP lines can be equipped with a range of great add-ons such as call forwarding, call queuing, and a virtual assistant.
Get a VoIP Line
So you know that you can easily make a call to a landline number from a VoIP service. You know that it is cheaper to run, easy to upgrade, and comes with great features. How do you get a VoIP line?
Give us a call and we’ll talk you through the process!
Recent 'VOIP' articles

What are the Requirements for VoIP?
In this fast-paced world that waits for no one, it is crucial to be on the top of your game if you want to achieve your goals. And one of the most important ways to keep up is connectivity. Unless you can stay in contact with those around you, you will have difficulty getting anywhere. More…

Using VoIP Overseas: An International Business Blessing
The Covid-19 outbreak has altered business practices throughout the world. As a result, we are no longer as eager to go to other countries for business as we were before. It is not only difficult because of social distance, but the cost is prohibitive. This is where the VoIP system comes into play to make More…

Everything You Need to Know About the 2025 PSTN & ISDN Switch Off
Even though it hasn’t happened just yet, there is one big pressing matter that Britain is about to face. This is the news that some people are talking about, but not everyone is ready for. Of course, the topic of the day is none other than the ISDN switch off and the PSTN switch off. More…