Home VoIP Services What is VoIP? The Definitive Guide to VoIP in 2023
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Voice over Internet Protocol (VoIP) is a technology that transmits audio and video over the Internet. VoIP allows voice calls from smartphones, computers, WebRTC-enabled browsers, and special VoIP phones.

Both businesses and consumers can benefit from this technology since it typically includes additional features typical phone services do not possess. These features include custom caller ID, voicemail to email, and call recording. It is also helpful to organizations to unify communications.

What is VoIP

VoIP Explained

Voice over Internet Protocol (VoIP) is a technology that enables voice and multimedia content transmission over the Internet. It replaces the traditional telephone lines used in landline communication with a web connection, offering a more versatile and cost-effective alternative.

VoIP works like a regular phone but uses an internet connection instead of a phone line. A group of technologies and methodologies enable it to deliver voice communications over the Internet. Among these technologies and methodologies are enterprise local area networks and wide area networks.

VoIP services convert audio signals into digital data, then transmitted over the internet. If a regular phone number makes a call, the phone number signal will be converted back into a telephone signal before reaching the other user.

VoIP can also handle outgoing and incoming calls routed through existing telephone networks. Some VoIP services, however, only work over a VoIP phone or computer.

Differences Between VoIP and Landline Phones

There are several considerable differences between VoIP and traditional landline phones. Check them below:

Landline Phones VoIP Phones
Mode of Carrying Voice Signals Analog voice signals are transmitted over physical copper wires. Voice signals in VoIP are digitized and transmitted over the internet or other IP-based networks.
Hardwiring Landline phones require a physical connection to the telephone network using copper wires. VoIP phones connect to the internet or a local network using Ethernet cables or Wi-Fi.
Cost Difference Landline services typically have higher costs, especially for long-distance and international calls. Generally, VoIP services are more cost-effective, especially for long-distance and international calls.

Calls made within the same VoIP network are often free, and international calls are significantly cheaper than traditional landline rates.

Monthly Cost $35 $20 to $35
Setup Cost $110 per jack $0
Technology Type Traditional landline phones utilize analog voice signals transmitted over the Public Switched Telephone Network (PSTN). VoIP is based on IP telephony and employs protocols such as Session Initiation Protocol (SIP) for call signaling, Secure Real-Time Transport Protocol (SRTP) for secure voice transmission, and Transport Layer Security (TLS) for encryption and authentication.
Call Routing $9.95 per month Included

The Mechanism of VoIP

  • Voice over Internet Protocol enables voice communication over IP-based networks like the Internet. A user’s VoIP phone connects to their Local Area Network (LAN) router or switches using an Ethernet cable or Wi-Fi.
  • The VoIP phone reports information to the chosen VoIP provider’s server, including its unique identifier and the user’s account details.
  • When the user initiates a call, the VoIP phone sends a call request to the VoIP provider, specifying the destination phone number or SIP address of the party being called.
  • The VoIP provider establishes the call between the two parties by locating the recipient and creating a connection. The provider then exchanges voice data packets between the caller and the recipient.
  • The recipient’s VoIP phone receives the voice data packets. It converts the digital signal into analog audio that users can hear using built-in speakers or external audio devices.
  • Both parties’ VoIP phones continue exchanging voice data packets throughout the call, ensuring real-time, two-way communication.

Benefits of VoIP

Voice over Internet Protocol (VoIP) offers numerous benefits compared to traditional phone systems. 

Here are some key advantages of using VoIP.

Advanced Features

VoIP systems provide advanced features that enhance communication efficiency. Features like call recording, auto attendants (automated receptionists), and call queues allow businesses to handle calls professionally and streamline their operations.

High Sound Quality

VoIP technology has significantly improved, resulting in high sound quality during calls. With a stable internet connection, VoIP calls can provide crystal-clear audio, ensuring clear communication between callers.

Cost Savings

VoIP can drastically reduce communication costs for businesses. Compared to traditional landline services, VoIP calls are generally more cost-effective, with savings of up to 60%.

Business Phone for Remote Workers

VoIP enables businesses to provide a unified communication system for remote workers. Employees can use their smartphones, laptops, or desktop computers with VoIP apps or softphones to make and receive calls, ensuring seamless connectivity regardless of location.

Low International Call Rates

VoIP services often offer highly competitive international call rates. For example, calls to Mexico may cost around $0.04 per minute, while calls to the United Kingdom could be as low as $0.01 per minute.

These affordable rates make VoIP an attractive option for businesses with international communication needs.

Scalability and Flexibility

VoIP systems typically allow businesses to remove and add phone lines as necessary due to their high scalability. It offers flexibility for growing companies or those with fluctuating communication requirements, ensuring the system can adapt to changing needs.

Features of VoIP Phone System

Best VoIP Services

Some key features of VoIP include;

Desktop and Mobile Apps

VoIP services offer dedicated desktop and mobile applications that enable users to make and receive calls using their computers, smartphones, or tablets.

These apps often provide additional functionalities such as contact management, call history, voicemail, and integration with other collaboration tools.

Auto Attendant

Auto attendant is a feature commonly found in VoIP systems that automatically answers incoming calls and provides a menu of options to direct callers to the appropriate extension or department. It eliminates the need for a human receptionist and ensures efficient call routing.

HD Call Sound Quality

VoIP utilizes advanced audio codecs and high-speed internet connections to deliver high-definition (HD) call sound quality.

This results in more transparent and natural voice communication than traditional telephone systems.

Unified Communications

VoIP systems often incorporate unified communications features, which combine various communication tools and channels into a single platform.

This includes video meetings, instant messaging, screen sharing, team chats, desktop and mobile apps, and conference calling.

Unified communications streamline collaboration, enhance productivity, and facilitate seamless team communication.

Call Recording

Additionally, VoIP offers a call recording feature, allowing you to review and analyze conversations.

By listening to recorded calls, you can identify areas where your team may need improvement and implement appropriate measures.

Call recording enhances training and quality assurance and helps you maintain a high standard of service.

VoIP Security and Call Encryption

VoIP security and call encryption are crucial features, particularly for business owners.

Telephone calls often carry sensitive information, such as HR conversations and credit card numbers.

With call encryption, VoIP technologies like Transport Layer Security (TLS) and Secure Real-Time Transport Protocol (SRTP) scramble call data, and as such, making prying almost impossible. This ensures the confidentiality and integrity of your calls.

To benefit from call encryption, inquire about this feature from your VoIP service provider. They can provide details on the encryption protocols and ensure secure business communication.

VoIP Pricing

The flexible pricing plans of VoIP are surprisingly cost-efficient, considering its numerous capabilities. 

VoIP can cost roughly $35 monthly, along with several seasonal promos. Notwithstanding, VoIP Pricing varies by providers and capabilities.

In contrast with traditional phone systems, VoIP phones can take within $50 per line at an initial cost, but conventional phone systems will cost about $50 to $100 for installation. 

VoIP’s monthly costs can range from $19 to $45 per line, and the device costs from $80 to $600 per IP phone. 

However, a traditional phone system will cost $100 to $500 for Deposit and $1000+ annually for maintenance. 

While international calls on VoIP phones will be billed at least $0.01+ for a minute, traditional phone systems will take up to $1+ per minute.

Considering the cost-effectiveness of VoIP, it’s rapidly becoming the most preferred cost-saving phone solution for homes, businesses, and security organizations.

Choosing a VoIP Provider – The Criteria

Despite the benefits, features, cost-saving, and other sophisticated attributes of VoIP, choosing the wrong provider can impact the performance of your phone solution.

With thousands of VoIP providers, finding the most reliable providers can be tricky. 

However, this section will address the vital factors to remember when choosing a VoIP provider.

Your Needs and Budget

VoIP is cost-saving; however, finding a provider with solutions that match your budget and needs can make a big difference. Since some providers will allow users to pay per feature while adding more over time, new businesses or low-budget users can consider such providers.

Service Operation

The durability of your VoIP provider is an essential factor to consider. Consider VoIP providers with minimal downtimes, hardware failure, network outages, and many other interruptions. While knowing how durable a provider is may be tricky, you can check out their customer reviews.

Customer Review

Checking the customer reviews of your preferred provider is ideal as it helps you learn more about the provider. Users will complain, applaud, and make suggestions on the review page. 

From there, you can quickly know what other customers have experienced. If the negative review surpasses the positive review, that’s a red flag. Check out another provider as well. 

Apart from the provider’s page, you can find more reviews about your preferred provider at reliable feedback platforms like Trust Pilot, Google Customer Reviews, Tripadvisor, etc.


VoIP pricing varies by provider, ranging from $0 to $50 monthly. Compare some VoIP providers you may like to know which has a more affordable premium plan. 

Although the cheaper plans may not come with all the vital features, they can be your best bet while exploring the phone solutions of your selected provider.

Responsive Support Team

Choosing a VoIP provider with a responsive support team is vital as you could need a quick fix for issues that may arise in the future. 

Thus, check out the contact options for your preferred provider to know their available options. Advisably, look for ones with live chat support for faster response to your queries.

Some other qualities you should look out for when choosing a VoIP phone service provider include network compatibility, reliability, multiple data centers, optional pro services, and documentation.

Choosing VoIP Equipment

VoIP phone system comes in two types, softphones, and rugged phones.

Softphones are software-based phone systems installed on the user’s mobile device or computer, allowing them to make and receive calls via the Internet. However, its keypad is accessible via the software.

On the other hand, rugged phones are hardware-based, similar to the traditional ‘table-top phone.’ The significant difference is that it facilitates communication across several locations via the Internet.

Choosing any type of VoIP system will depend on your needs. The rugged phone can be ideal for businesses, entrepreneurs, and homes.

However, consider the softphone VoIP systems to make and receive calls anytime and anywhere.  


Voice Over Internet Protocol (VoIP) is a revolutionary solution that makes communication seamless between businesses, team members, customers, and families. 

Notwithstanding, critical factors must be considered when choosing a VoIP phone number provider, ranging from pricing plans to security. 

Follow all steps mentioned above, and compare several VoIP providers, to find the best virtual phone number solution for your needs.


What is an example of VoIP?

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What is the meaning of VoIP compatible?

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Dan Mabry Writer

Dan Mabry Writer

Dan Mabry has a deep passion for technology. Embarking on his writing career in 2020, he has consistently provided valuable insights to leading technology publications. Dan hones his boxing skills at the local club when not immersed in digital technology. He is preparing himself for a robot-dominated future.

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