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What Is a VoIP Number & How Does It Work?



What Is a VoIP Number & How Does It Work

The number of businesses switching to cloud-based☁️ systems is steadily increasing. That is because VoIP numbers have become one of the most important tools for businesses that need to maintain their market share.

You might not be familiar with the term “VoIP” or fully understand its benefits. VoIP, or Voice over Internet Protocol, is a telecommunications method that has substantially changed how phone calls are made to businesses and individuals.

This blog intends to clarify the concept of a VoIP number, its workings, advantages, and uniqueness compared to other types of telephone numbers.


  • VoIP number is a type of telephone number that uses an internet connection rather than a landline telephone network to connect to a telecommunication system.
  • To get a VoIP number, you need to identify your needs, choose a reliable provider, pick a number of your choice, and then configure the VoIP system.
  • People choose a VoIP number because it’s affordable, provides mobility & reliability, is flexible, and helps improve productivity.
  • VoIP numbers can cost between $10 and $30 per user per month.
  • To get a VoIP number, KrispCall is the right choice for you.

What is a VoIP Number?

A VoIP number is a type of telephone number that uses an internet connection rather than a landline telephone network to connect to a telephony system. In contrast to traditional phone numbers, VoIP numbers are not limited to a region but are bound to a user.

VoIP calls via VoIP numbers can be made from any internet-enabled device, such as cell phones, PCs, softphones, and desk phones. In other words, it matters not which device type you use but that you can make VoIP calls at any time, anywhere.

Additionally, VoIP numbers support SMS and instant messaging; a user can send messages by SMS, MMS, or group chat through it.

VoIP technology, on which VoIP numbers are based, ensures excellent call quality. It features HD voice and low latency, jitter, and packet loss. The quality of phone calls is maintained even during video conferences. VoIP systems guarantee the quality of phone calls, even for those worried about the connection or the Internet service.

What is a VoIP Number Used for?

A VoIP number is used for Internet telephony instead of conventional telephony lines. Such numbers are commonly linked to VoIP services and can be used for any purpose, from personal to business communication.

VoIP numbers are amazing for their portability, cheaper rates, and other features, including call forwarding, voicemail-to-email, and global calling.

Who Would Use a VoIP Number?

VoIP numbers are suitable for customers who want convenient and economical communication. Small and large companies use them to create business profiles for basic telecommunication and obtain more sophisticated features such as call transfer and call monitoring.

VoIP numbers benefit individuals who want effective, generalized, inexpensive communication solutions.

🔗Related: What Is Non VoIP Number? Everything You Need To Know

How Does a VoIP Phone Number Work?

How Does a VoIP Phone Number Work

VoIP number is a technology where voice communication is made through the internet rather than telephone lines. Here’s a simplified breakdown of how it works:

  1. Call Initiation: Users acquire these numbers from VoIP service providers to initiate VoIP calls like they would from a traditional phone company. 
  2. Digitization: During this process, speech produced into a VoIP phone or device is transformed into digitally encoded packets.
  3. Transmission & Routing: These digital packets are then routed through the Internet to the recipient’s device. VoIP calls can also be connected over the Internet or any other Internet-based network to reach the destination.
  4. Conversion: The digital data packets are then reconverted at the other end into audio signals that enable the recipient to hear your voice.
  5. Functionality: The VoIP numbers may generally be used to place and receive calls like regular phone numbers. However, they also usually include other functions like voicemail, call forwarding, caller identification, and conferences.

Types of VoIP Numbers

There are three types of VoIP numbers, each with a different format, function, and purpose. Here is a brief summary of them.

1. Local Numbers

Local numbers are defined by the prefixes of area codes that are associated with specific regions. With the help of virtual number providers, businesses can easily get local numbers from any foreign countries or districts.

Local numbers are a strong tool for gaining regional credibility and establishing relations. They give you the ability to create a local image without having to be physically present in each area, thereby increasing customer confidence and strengthening the relations.

2. Toll-free Numbers

Toll-free Numbers are a kind of telephone number with its own code of three digits, and it is possible to call these numbers for free.

A toll-free number lets customers call a business without being charged. By offering a toll-free number, businesses can boost their image and make customers feel at ease calling without fear of phone charges.

3. Vanity Number

A vanity number is a telephone number composed of distinctive digits that are easily memorable and may be related to the associated business or service.

Vanity numbers are assigned different sequences of digits to make them stand out and be more memorable. For example, they may include repetitional digits like 1-877-333-3333.

4. Mobile Phone Number

VoIP mobile numbers are mobile numbers assigned to a specific account or user. They allow for the sending and receiving of SMS messages and the forwarding of calls to any landline or mobile number.

They are often used for business purposes, offering benefits such as cost savings, scalability, and the ability to use the number on any device.

VoIP Number Vs. Landline Number

VoIP and landline numbers are different in their mode of transmission and assignment. A VoIP number is not linked to any particular place, whereas a regular phone number is given to a physical address through copper phone lines.

VoIP numbers are very flexible, so businesses can get local numbers from different countries or districts. This element assists in creating regional credibility and connectivity, as it allows a local presence without the need for physical offices in every location. Such a system creates customer trust and familiarity.

VoIP Number Vs Landline Number

One of the differences between VoIP numbers and landline numbers is cost. VoIP services usually have fewer expenses than traditional landline services. This price difference is mainly due to the dependence on an internet connection instead of the physical phone system hardware.

VoIP phone systems usually charge a low, fixed monthly fee, avoiding high initial costs. They can easily grow with your needs and offer features like auto-attendants, call routing, messaging, and call recording.

How To Get a VoIP Number?

Getting VoIP numbers is similar to buying a landline plan, except it is way simpler. The function of a Voice over Internet Protocol provider is mainly doing the wiring and handling any configuration changes. You also have the option to port your existing number into VoIP system.

The biggest step in getting VoIP numbers is to pick the right provider, as they will provide all the much-needed self-serve tools to complete most of the setup online. 

Therefore, choosing a dependable and easy-to-run VoIP service provider becomes a prerequisite to an overall satisfying VoIP experience. We will help you obtain a VoIP number.

1. Identify Your Needs

When choosing a VoIP service provider, consider how many users you need, handy features such as call forwarding, visual voicemail, and call recording, and the type of numbers you need. This will assist you in identifying a VoIP service provider and, hence, a plan that will be fitting for your business.

2. Choose a Reliable VoIP Service Provider

The next step would be to define your needs and conduct research. Pick a service provider that can guarantee reliable service, helpful customer service, and all the needed features for a reasonable price. You can contact the service provider in your eyes through the contact center.

3. Pick Your VoIP Number

A majority of the service providers are the ones who can give you the choice of the Voip phone number from their available options. You can choose a local, toll-free, or international number according to your given requirements. Besides that, some providers also offer you the choice of porting your phone number to their service.

4. Configure Your VoIP System

Following that, you will be provided with your VoIP number. Finally, you will have to set the service up the way you wish to. The procedure of setting up involves configuring user extensions, configuring voicemail settings, and customizing the call routing and forwarding conditions. Fortunately, almost all VoIP providers have online interfaces that are very simple to use, thus making this process easier.

Why Would Someone Use a VoIP Number: Key Benefits

Although traditional phone services enable users to make calls, send and receive voicemails, and have access to advanced features such as custom caller ID, VoIP numbers provide additional advantages for both individual users and companies.

This is because VoIP numbers are designed with software that has the ease of performing different tasks. Here are some key benefits that you could get by using VoIP numbers.

1. It’s Cost Saving

VoIP numbers are internet-based, reducing the cost of long-distance and international phone calls. It is thought that you can save up to 90% when international calls are done using VoIP numbers, and by as much as 40% when local calls are made via VoIP numbers. VOIP numbers will give consumers a more economical way of communication, especially for international contacts.

2. It Provides Mobility & Reliability

VoIP phone numbers provide a cost-effective method of connecting diverse customers around the world, thus facilitating worldwide network expansion. Furthermore, VoIP calls require merely a reliable internet connection, a headset, a subscription plan, and a VoIP number for business communication, and professionals can work from anywhere.

3. It’s Flexible

The VoIP phone numbers are not linked to a particular phone, device, or (physical or geographic area). The fact that you can attribute a VoIP number to a person and not to a location, you can, therefore, access it from any device – whether it will be a business phone, laptop, tablet, or else. It makes the use of business telephony more effective and dynamic for the users.

4. It Increases Productivity

Small businesses report a productivity increase of 77% thanks to VoIP phone systems. This is due to the useful features of IP telephony. These tools simplify communication and call handling mainly due to the fact that they enhance agent presence, expand the scope of automation stories, and get rid of repetitive tasks.

5. It Has Better Voice Quality

Through a VoIP phone number, one can get better voice quality than in an analog phone. This is because VoIP uses sophisticated technology and VoIP codecs that digitally convert sound. With VoIP, your calls can be sent via the most efficient method available by using a relative amount of bandwidth connectivity.

Are VoIP Numbers Secure? How to Prevent VoIP Fraud?

The security of your VoIP numbers is the most important thing for businesses of all scopes because any interruption can be a total disaster. VoIP is based on internet transmission of voice communications, therefore, VoIP services have techniques to avoid such disruptions and frauds.

The calls are made using the SIP protocol which is an internet-working protocol that enables the establishment of calls via the internet between computers or other devices. SIP is a signaling protocol that makes sure the internet telephony is always reliable. A SIP server converts voice traffic into digital packets which are then sent over an internet connection.

It may be difficult to distinguish between genuine calls and identity thefts because VoIP phone frauds can be intelligent and complex; this indicates the importance of protection against such frauds.

  • Whenever you take calls, you should be very careful and aware of the latest scams.
  • Avoid discussing confidential matters over the phone with someone who called you.
  • Ensure that you change your login details for all the devices you use at least every month to boost your online security.
  • Do not try to call any phone numbers from unexpected emails that you may receive.
  • If you are not certain of the identity of the caller, then let them record a voice message for you.
  • Review your call records from time to time to identify any unusual outbound calling behaviors.
Take A Deeper Dig With This 👉: Is VoIP Reliable? Key Factors To Consider Before Switching

How Much Does a VoIP Number Cost?

A VoIP number can cost between $10 and $45 per user per month, depending on the provider and the type of plan selected.

KrispCall is a trusted cloud-based VoIP service provider used by over 4,500 companies worldwide. It offers a range of features such as call queues, call transfer, conference calling, multi-level auto attendants, global call routing, call monitoring, and more, making it suitable for businesses handling high call volumes.

KrispCall offers affordable plans for businesses of all sizes, providing toll-free, local, mobile, and business virtual numbers. The Essential Plan is $15/user/month for startups, the Standard Plan is $40/user/month for growing businesses, and Enterprise Plans are customizable. All plans ensure transparent pricing with no hidden fees.

Plus, with 24/7 human customer support🎧 and seamless integration capabilities, KrispCall offers unbeatable value for businesses of all sizes.

Get A Better Understanding 🧠 of How Much Does VoIP Cost?

Boost Your Business Connectivity with KrispCall’s Feature-Rich VoIP Numbers

If you or your organization are looking for a VoIP number, we highly recommend contacting KrispCall. KrispCall has become one of the leading players in the VoIP business, offering a range of VoIP functionality and virtual numbers of all types from 100+ countries. 

Customer service is vital as it is the front line of the business and can make a difference in retaining or losing a sale. KrispCall provides many features, such as call forwarding, call transfer, IVR, shared phone numbers, and call recording, which will help you effortlessly engage with your customers and colleagues and enhance your productivity. 

If you are in the finance industry, things move quickly and need privacy and security. KrispCall can protect against possible security threats including fraudulent phone calls, by end-to-end encryption. Furthermore, KrispCall gives VoIP services at a cheap cost. If you want a VoIP number, consider Krispcall for once.

Final Thoughts

VoIP numbers are a good option for utilizing all of VoIP technology’s benefits, including advanced calling features and the possibility of working from anywhere in the world. This makes them really appreciated by businesses that want to improve the way they communicate.

VoIP numbers allow businesses of all sizes to use advanced calling features without a huge initial expenditure. All that is necessary is an Internet connection and old equipment to use virtual calling.

If you’re looking for a reliable and cost-effective VoIP service provider, consider KrispCall. With it, you can acquire VoIP numbers of various types from 100+ countries. They also include spam call blocking, a custom dial menu, call routing, voicemail-to-email, and more. That is why KrispCall is the best business virtual number service provider. 


Can a VoIP number be traced?

VoIP services work off the Internet. They send all voice data through the Internet, which makes it traceable. However, the only way a VoIP number can be traced and captured is through law enforcement.

Can you text a VoIP number?

Yes, you can send and receive standard SMS text messages with a VoIP (Voice over Internet Protocol) or Voice over IP phone number you currently use at your business.

What is the difference between a VoIP number and a mobile number?

The key difference between VoIP and regular phone numbers is how they send calls. A VoIP phone number uses the Internet to connect calls, whereas a regular mobile phone does so through a traditional cellular network.

Can I use a VoIP number for WhatsApp?

Yes, you can use a VoIP number for WhatsApp. By acquiring a virtual number from a VoIP service provider, like KrispCall, you can verify and set up WhatsApp with this number, allowing you to use WhatsApp’s functionalities, such as messaging, voice calls, and video calls.

What happens if I call a VoIP number?

If you call a VoIP number, your call will be directed to the person you are trying to reach, like a normal phone call would.

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Dinesh Silwal

Dinesh Silwal is the Co-Founder and Co-CEO of KrispCall. For the past few years, he has been advancing and innovating in the cloud telephony industry, using AI to enhance and improve telephony solutions, and driving KrispCall to the forefront of the field.

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