Do you feel like the plain old telephone services are holding your business down? 

If you’re frustrated paying sky-high bills for international calls or missing out on the advanced features your competitors enjoy, you’re not alone. Many businesses are discovering that traditional phone lines are not only outdated but also a significant drain on their resources.

But here’s the good news: there’s a smarter, more cost-effective solution—Voice over Internet Protocol (VoIP).

Let’s uncover how VoIP compares to traditional phone service. This blog will also show you why switching providers isn’t just a choice—it’s a game-changer.

🔑Key Takeaways
  • VoIP is a digital communication technology that enables users to communicate over the internet 
  • Traditional phone services refer to communication systems that rely on Public Switched Telephone Network (PSTN) or landline technology.
  • Traditional phone services are being phased out in many regions in favor of digital communication systems that offer better functionality and lower costs
  • VoIP can save you 90–98% on international calls compared to traditional landline phones

What Is VoIP Phone Service and How Does It Work?  what is voip phone service and how does it work.

Voice over Internet Protocol (VoIP) is a technology that enables voice communication and multimedia sessions over the Internet.

Instead of relying on traditional telephone lines, VoIP converts your voice into digital signals. Those signals are then transmitted over broadband connections.

This effective and flexible solution has gained widespread popularity among businesses and individuals in recent times.

How Does VoIP Work?

VoIP technology works in these five basic steps:

  1. Voice Conversion: Your analog voice signals are converted into digital data using a codec.
  2. Packet Transmission: The digital data is split into packets labeled for proper routing.
  3. Internet Routing: Packets travel efficiently through the Internet to the recipient.
  4. Reassembly: At the destination, packets are reordered, and digital data is converted back to voice signals.
  5. Quality Optimization: Techniques like echo cancellation and QoS ensure clear communication.

Overview of Traditional Phone Service

Traditional phone services have been the cornerstone of global communication for more than half a decade. These refer to communication systems that use established telecommunication networks to connect calls. These include:

  • Landlines: Fixed-line telephony that transmits signals over copper wires. Landlines operate through a network of copper or fiber-optic cables connected to telephone exchanges.
  • Mobile Services: Wireless communication that relies on cellular networks to connect users on the go. They rely on cellular towers, radio frequencies, and SIM cards to enable wireless communication.

While a handful of businesses at present still rely on this technology for communication, it cannot compete with modern VoIP services. The fast-evolving communication scene means traditional telephony is becoming a thing of the past. 

VoIP vs Traditional Phone Service: Features and Functionality

Feature VoIP (Voice over Internet Protocol) Traditional Phone Service
Technology Uses the internet or data networks to transmit voice signals. Uses a public switched telephone network (PSTN).
Call Quality Varies depending on internet connection speed and stability. Generally more consistent, with stable call quality.
Mobility It can be used anywhere with an internet connection. Limited to specific locations unless using a mobile phone.
Features Advanced features (video calling, voicemail to email, etc.). Basic features (voicemail, caller ID, etc.).
Reliability Dependent on internet connection; may experience interruptions. More reliable, especially during power outages.
Installation Simple; it only requires an internet connection, a power supply, and a compatible device. Requires installation of a physical phone line.
Scalability Easy to scale; additional lines or users can be added easily. Scaling requires adding more physical lines and equipment.
Security It can be vulnerable to hacking and eavesdropping if not secured. More secure due to the physical nature of the network.

VoIP vs Traditional Phone Service: Cost Comparison

VoIP phone system tends to be the more economical choice in both the short and long term, with lower upfront costs and ongoing service fees. Traditional services often come with higher costs due to installation, monthly charges, and additional fees.

Cost Aspect VoIP Service Traditional Phone Service
Initial Setup Costs
  • $50 to $250 per device for hardware like IP phones. 
  • Small business setup: $500 to $1,000.
  • $1,000 to $5,000 for installation, depending on number of lines and required hardware.
Monthly Service Fees
  • $20 to $50 per user, often with unlimited calling plans included.
  • $50 to $100 per line, excluding long-distance and international charges.
Additional Charges and Hidden Fees
  • Transparent pricing; few hidden fees. 
  • Advanced features are often included at no extra cost.
  • $10 to $50 per month per line for maintenance, equipment upgrades, and premium features.
International calls
  • Significantly cheaper rates
  • For example: 
  •  USA to UK: $0.01–$0.05 per minute
  • USA to India: $0.01–$0.03 per minute
  • USA to Australia: $0.01–$0.04 per minute
  • 90–98% more expensive 
  • For example:
  • USA to UK: $1.00–$2.00 per minute
  • USA to India: $1.50–$3.00 per minute
  • USA to Australia: $1.00–$2.50 per minute
Long-Term Savings
  • Long-distance calls: $0.01 to $0.10 per minute. 
  • Adding new lines is often free or under $10 per line.
  • No maintenance costs.
  • Long-distance calls: $0.10 to $0.50 per minute.
  • New line charges: $100 to $500 per line. 
  • Maintenance costs apply.

Note: The costs presented in the table above are approximations based on a range of prices and may vary depending on the provider or region

🔗Related blog: The Top Predictive Dialer Providers for Call Centers

Why you Should Consider Switching to VoIP?

1. Cost-Saving Advantages

Switching to VoIP significantly reduces both initial and ongoing communication expenses. With lower setup fees, minimal hardware requirements, and cost-effective plans for international and long-distance calls, businesses and individuals can allocate savings to other priorities.

2. Flexibility for Modern Needs

VoIP is inherently scalable, making it ideal for growing businesses. Whether you’re adding new team members or scaling back operations, VoIP adapts to your changing needs without additional complexity or significant costs. It’s also perfect for remote and hybrid work environments.

3. Access to Advanced Features

Unlike traditional phone services, VoIP offers cutting-edge features such as video conferencing, call analytics, call recording, and voicemail transcription. These tools enhance productivity and collaboration. 

4. Enhanced Mobility and Global Reach

VoIP enables you to make and receive calls from anywhere with an internet connection. This mobility is especially advantageous for businesses with international clients or remote teams. You can ensure uninterrupted business calls across time zones.

5. Future-Proof Communication

Investing in VoIP ensures you’re equipped with a communication system that keeps pace with digital advancements. Traditional phone services, by contrast, risk becoming obsolete as more organizations transition to internet-based solutions focusing on business intelligence.

🔗Related blog: Best Virtual Telephone Number Providers for Businesses in 2025

Integration of Traditional Infrastructures into VoIP Systems

Integration of traditional infrastructures into voip systems.

Traditional telecommunication infrastructures, such as landlines and mobile networks, are often integrated into modern VoIP systems to ensure effective communication across diverse platforms. Here’s how this works:

1. PSTN Gateways

PSTN gateways convert analog signals from landlines into digital packets for VoIP transmission and vice versa, allowing VoIP users to call landlines and vice versa.

2. SIP Trunking

 Businesses use SIP trunks to enable VoIP systems to route calls through the PSTN infrastructure, providing access to traditional phone numbers while leveraging the flexibility of VoIP.

3. Hybrid PBX Systems

These systems allow businesses to use existing landline infrastructure while gradually adopting VoIP for advanced features like video conferencing and remote calling.

4. Mobile Network Integration

Mobile devices use data networks (Wi-Fi or cellular data) to initiate VoIP calls, while traditional cellular networks handle calls when data networks are unavailable.

5. Number Portability

Through number portability, phone numbers from the PSTN system are mapped onto VoIP networks, ensuring uninterrupted communication during migration.

Benefits of Integration

  • Smooth Transition: Allows gradual migration to VoIP without abandoning traditional infrastructures at once.
  • Broader Connectivity: Enables communication between VoIP phone systems and those on landlines or mobile networks.
  • Cost Efficiency: Reduces the need for entirely new infrastructure while leveraging the advanced features of VoIP.

Through these means, the concept of VoIP vs landline can be eradicated, as VoIP and landlines can also go hand in hand.

Factors to Consider When Switching Providers

  • Business Communication Needs: Evaluate whether VoIP can fulfill your current and future requirements. Advanced features like call forwarding, voicemail transcription or remote accessibility can prove essential for your growth.
  • Service Providers and Plans: Compare various providers based on pricing, features, customer reviews, and support services for your phone system.
  • Ease of Transition: Evaluate how easily your organization can switch to a VoIP phone system. Look for providers offering decent support during the transition to minimize inconvenience.
  • Network Infrastructure: Ensure you have a broadband internet connection. Also check if your network infrastructure can handle VoIP traffic efficiently, providing the necessary bandwidth and reliability. 
  • Integration with Existing Systems: Check whether the VoIP service integrates seamlessly with your business phone system, such as CRM platforms or email systems.
  • Security Features: Evaluate the security measures offered by the VoIP provider, such as encryption and secure authentication protocols, to protect sensitive communications.
  • Customer Support: Consider whether the provider offers comprehensive customer support and training resources to help your team transition smoothly.

So consider switching from landlines

  • If you’re looking to reduce your phone bill, especially for long-distance or international calls, VoIP services typically offer much lower rates than traditional phone providers.
  • If your business is growing and you need to add additional lines.
  • If you’re seeking advanced features like voicemail-to-email, automatic call forwarding, video calling, and seamless integration with other apps.
  • If traditional landline services are being phased out in your area, switching to VoIP will be necessary to maintain your phone service.
🔗Related blog: Best VoIP Apps for Android in 2025: A Complete Review

As we’ve seen, numerous advantages make VoIP the preferred choice for modern businesses and individuals. 

So, hurry up and evaluate your phone service options. Consider VoIP as a cost-saving, feature-rich alternative to stay ahead in today’s competitive environment.

A Customer story

“At the helm as Operations Manager, I prioritize maintaining seamless communication, and Dialaxy stands out as my go-to ally. With its tailored features for e-commerce practitioners, I effortlessly streamline communication workflows, ensuring precision and productivity wherever I am. Undoubtedly, it’s a vital asset for any seasoned e-commerce professional!”

John Davis

Operations Manager

FAQs

Is VoIP better than landline?

Yes, VoIP is generally better than a landline for most users. It offers lower costs, advanced features, and greater flexibility as it works over the Internet. However, landlines are more reliable during power outages if no backup system is in place for the VoIP system.

Is VoIP reliable?

Yes, VoIP is reliable as long as you have a stable and fast internet connection. Modern VoIP systems are designed to minimize latency, dropped calls, or quality issues. To ensure reliability, consider having a backup power source and internet redundancy.

Why is a VoIP phone system cheaper than a landline?

VoIP is cheaper because:

  • It transmits calls over the internet, eliminating the need for costly physical infrastructure.
  • Many VoIP providers offer flat-rate or unlimited plans, reducing overall costs.
  • Maintenance and setup costs are lower than with traditional systems.

Can I use my existing phone number with VoIP?

Yes, most VoIP providers allow you to port your existing phone number to their system. The process may involve a small one-time fee but ensures continuity for your business or personal contacts.

Can I use my current internet connection with a VoIP phone system?

Yes, as long as your internet connection meets the minimum speed and bandwidth requirements for VoIP. Typically, a high-speed broadband connection (DSL, fiber, or cable) is sufficient for smooth VoIP communication.

Should I keep a landline in case there’s an emergency, such as a fire or power outage?

Keeping a landline as a backup can be helpful if you experience frequent power outages or internet disruptions. However, many VoIP systems offer solutions like battery backups and mobile app integration, which can act as substitutes during emergencies.

Are emergency services accessible via VoIP?

Yes, VoIP can connect to emergency services. However, users need to ensure their location information is updated in the VoIP system, as calls are routed through the internet and not tied to a physical phone line.

Is VoIP secure?

VoIP can be secure, but its security depends on the measures in place. To ensure VoIP is secure, consider using encryption, firewalls, and VPNs. Also, give priority to Software Updates for optimum VoIP security.

Prasanta Raut

Prasanta, founder and CEO of Dialaxy, is redefining SaaS with creativity and dedication. Focused on simplifying sales and support, he drives innovation to deliver exceptional value and shape a new era of business excellence.

Prasanta, founder and CEO of Dialaxy, is redefining SaaS with creativity and dedication. Focused on simplifying sales and support, he drives innovation to deliver exceptional value and shape a new era of business excellence.