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A virtual phone system lets you manage business calls through the internet, while virtual phone numbers give customers a way to reach you across supported devices. Before switching, consider how your team handles calls. Otherwise, you could pay for features you don’t need or miss the ones your business depends on.
A report listed by Research and Markets estimates the global virtual phone number for business market at $1.93 billion in 2026, up from $1.76 billion in 2025. That growth reflects rising demand for business numbers that aren’t tied to a single physical phone line.
For businesses considering the switch, cloud-based systems offer ways to reduce equipment costs and manage calls across locations. Below, you’ll find a breakdown of how these systems work, which setup fits your business, and what to check before getting started.
What Is a Virtual Phone System?
A virtual phone system is a cloud-based communication platform that manages calls via the internet (Voice over Internet Protocol) rather than traditional copper wires. It allows businesses to make and receive calls, send texts, and manage video meetings from a single app on any device such as a laptop, tablet, or smartphone, using one phone number for your business.
Traditional telephone systems tether you to your desk. However, a virtual phone system turns your business communication into software. Whether you’re a solopreneur running a small business or a company on the move with a global support team, the goal with using a virtual system is the same: flexible communication.
Virtual Phone System vs. Virtual Phone, Software, and Other Phone Systems
The terms virtual phone system, virtual phone, and computer phone system sound similar, and it’s easy to mix them up. The difference comes down to what each one refers to: the complete calling service, the phone number you use, the device you call from, or the software that makes it all work.
What are phone systems?
Phone systems are the services and equipment businesses use to manage incoming, outgoing, and internal calls. They can use traditional telephone lines, an on-site PBX, or a hosted internet-based service.
For example, a business might use its phone system to assign employee extensions, direct customers to sales or support, and send unanswered calls to voicemail. A virtual phone system performs these tasks through a hosted platform rather than a PBX the business maintains on-site.
What is a computer phone system?
A computer phone system lets employees make and receive calls through compatible calling software on an internet-connected computer. It typically combines a business calling service with a desktop or browser-based softphone and a microphone or headset.
This setup suits employees who already work at a computer throughout the day. A sales representative can call customers from a desktop app, while a support agent can handle calls alongside customer records.
What is a virtual phone?
A virtual phone generally refers to a software-based phone, or softphone, used to make and receive calls through an internet-connected device. The term is sometimes used loosely for a virtual calling service, but a virtual phone number is the number assigned to that service.
This distinction matters when comparing products. A business number alone does not tell you whether the service includes employee extensions, call queues, transfers, or other features your team needs.
What is virtual phone software?
Virtual phone software is the application employees use to access an internet-based calling service. It provides the interface for making and answering calls and may include voicemail, transfers, business texting, and customer information.
The software connects employees to the phone system; it does not necessarily include the calling subscription itself. Check which apps, devices, and licenses the provider supports before choosing a plan.
These terms describe related parts of a business calling setup. Here’s what to check when comparing services, devices, and software.
| Term | What to check | Example |
|---|---|---|
| Phone system | Call capacity, routing options, equipment requirements, and total cost | A company directing customer calls to sales or support |
| Virtual phone system | Internet requirements, remote access, and options for handling calls during an outage | A business routing incoming calls to employees working remotely |
| Computer phone system | Computer compatibility, headset support, and access to calling features | A sales representative calling customers through a desktop app |
| Virtual phone | Number availability, supported devices, and whether you can keep an existing business number | An employee using the same business number on a laptop and smartphone |
| Virtual phone software | Ease of use, voicemail access, call transfers, and integration with other business tools | An app for answering calls, checking voicemail, and transferring callers |
How a Virtual Phone System Works
A virtual phone system uses a provider’s hosted platform to connect calls and apply your business’s routing rules. When employees speak through an app or IP phone, VoIP technology converts their voices into digital packets that travel over an IP network.
To understand that process, start with the call itself.
What is a virtual call?
A virtual call is a voice or video conversation carried over the internet. Within a virtual phone system, it usually means a VoIP voice call made through an app or IP phone, including calls to customers using regular mobile phones or landlines.
How the call reaches its destination
When someone calls your business number, the provider follows the rules you’ve configured. It might play an auto-attendant greeting, ring a group of employees, or send the caller to voicemail outside business hours.
Once the call connects, your app or IP phone converts speech into digital packets. The receiving device converts those packets back into audio. Calls to regular telephone numbers also connect through the telephone network, so customers don’t need your business’s app to speak with you.
Watch: See how a virtual phone system moves your office to the cloud.
Three components make this work:
- Your internet connection: Employees can connect through Ethernet, Wi-Fi, or mobile data. Nextiva’s bandwidth guidance specifies 100 Kbps of upload and download capacity per simultaneous standard-quality call. Leave capacity for other traffic and check latency, jitter, and packet loss too.
- The cloud service: Your provider handles call processing, number management, and feature delivery. You manage the settings without maintaining an on-site phone server.
- The app or device: A desktop softphone, mobile app, or supported IP desk phone connects employees to the same service.
Your business number stays with your account when you move offices or add locations. Check service availability and update emergency-location settings when employees change where they work.
Types of Virtual Phone Systems
Businesses can use a software-only setup, a cloud PBX, or a hybrid system. These categories overlap: a softphone is often the app employees use to access a cloud PBX.
1. Softphone-only (desktop apps)
These virtual systems are purely software-based and eliminate the need for desk phones or special hardware. Softphones work as an app on your laptop (PC/Mac) or smartphone, turning your personal devices into professional work tools. Voice data travels over your internet connection, which may use Ethernet, Wi-Fi, or mobile data. This type offers the most flexible and cost-effective entry into VoIP.
This pure softphone model is ideal for solopreneurs, freelancers, and fully remote startups that need to set up a business operation immediately without having to ship any hardware. It offers the easiest entry point but is heavily dependent on the strength of the local internet connection and the battery life of the end device.
2. Cloud PBX (hosted VoIP)
Hosted PBX is the standard for small and medium-sized enterprises (SMEs) as well as large corporations. It replicates the full functionality of a traditional telephone system, including hold music, complex queues, and direct dialing, but hosts the system architecture in the cloud. Unlike PC-based systems, cloud PBX supports not only mobile apps on Android and iPhones (iOS) but also physical IP desk phones for users who prefer them, offering businesses a professional, cross-device ecosystem.
This is ideal for growing businesses that require a structured approach. If you have a physical office, reception, or sales force that needs powerful call routing capabilities, a cloud PBX offers the enterprise-level reliability and functionality that simple applications cannot match.
3. Hybrid phone systems
A hybrid system bridges the gap between traditional on-premises hardware and the cloud. In this setup, a business retains its existing PBX server (due to contractual obligations or strict internal security policies) but connects it to the internet via SIP trunking. This allows legacy hardware to make calls over the internet, reducing copper line costs, while gradually introducing cloud features such as remote extensions.
Large corporations, hospitals, and government agencies frequently use hybrid systems. These organizations may have invested heavily in on-premises hardware that hasn’t yet been fully depreciated, or they may operate high-security facilities where fully cloud-based voice communication requires complex regulatory approvals.
Key Features of a Virtual Phone System
The feature set is what separates a virtual phone system from just “making calls over the internet.” Here are the capabilities that actually change how your team works.
Call management and routing
An auto-attendant answers every call instantly and routes callers to the right department without a human receptionist. You configure the rules once. “Press 1 for Sales, Press 2 for Support.” After hours, calls go to voicemail or a different team automatically.
Advanced call forwarding (sometimes called “Find Me/Follow Me”) takes this further. When a call comes in, the system tries your desk phone first, then your mobile, then your home office, in whatever order you set.
Missed calls become rare. Call queues hold callers when all available employees are busy, playing hold music or recorded messages. These tools give your team more ways to handle demand, though staffing and queue settings still affect missed calls and wait times.
Communication beyond voice
Many virtual phone systems combine business SMS, video conferencing, and team messaging in one app. Employees can text a client from a business number, join a video meeting, and check team messages through supported plans.
Voicemail-to-email transcription converts voice messages into text and delivers them to your inbox. When transcription is included, you can read the message during a meeting instead of stepping out to listen.
AI-powered intelligence (AI tools)
This is where virtual phone systems have pulled furthest ahead of traditional setups. Some providers offer AI tools in higher-tier plans or as add-ons:
- Call summaries. AI listens to the conversation and emails you a recap with action items after the call ends.
- Sentiment analysis. Managers get a live dashboard showing which customer conversations are going well and which ones need intervention.
- Automated coaching. The system flags patterns like agents interrupting customers too frequently, giving supervisors data to improve training.
Check which tools are included, how they handle call data, and whether employees need separate licenses. Review AI-generated notes before using them as the record of a conversation.
Integrations and analytics
Your phone system should talk to your CRM. Virtual phone software integrates with tools like Salesforce and HubSpot so that when a customer calls, their account history pops up on screen before you say hello. Real-time analytics dashboards track call volume, wait times, and missed calls, helping managers staff correctly instead of guessing.
Virtual Phone System vs. Traditional PBX
If you still have a server room full of cables, you’re probably paying for a private branch exchange (PBX). Here’s why more businesses are moving to virtual (cloud) systems.
Here’s what you’re actually paying for compared to a cloud-based virtual phone system.
| Feature | Virtual phone system | Traditional PBX |
|---|---|---|
| Setup cost | Low (no hardware required) | High (servers + professional installation) |
| Maintenance | Provider handles all updates | Ongoing (requires dedicated IT staff) |
| Scalability | Add users in clicks | Buy new line cards, schedule technician |
| Location flexibility | Work from anywhere with internet | Tied to the physical office |
| AI features | Built-in (transcription, sentiment, coaching) | None, or expensive third-party add-ons |
| Disaster recovery | Geo-redundant data centers | Vulnerable to local power and network outages |
On-premises systems may involve maintenance contracts, equipment replacement, power costs, and IT time. Hosted systems move much of that spending into a subscription, but hardware, add-ons, international calls, and usage fees can still increase the bill.
An on-premises PBX can still suit a business that needs direct control over its equipment and data handling. Compare those needs with the provider’s hosting locations, security controls, and contract terms.
Benefits of a Virtual Phone System
Why do businesses use virtual calls? They keep employees reachable through business numbers, whether they work in the office, remotely, or on the move. A virtual phone system also brings call routing and shared coverage into one place, without requiring an on-site phone server.
Here are the benefits of virtual phone calling through a virtual phone system:
1. Instant scalability
Previously, growth meant hiring a technician to lay new cables. With a virtual phone system, adding a new sales representative or opening a new branch is just a few clicks away in the web portal. You can scale from 5 to 5,000 users without having to buy a single server.
2. Unified communication
Why pay for separate apps for video conferencing, team chats, and SMS? VoIP phone services like NextivaONE combine all these functions into a unified, all-in-one user interface. Your employees no longer need to switch between apps and can instead focus entirely on what matters most.
3. Advanced AI & analytics
The biggest change has been the integration of the following AI features (and more) into virtual phones. Call reports give managers a view of demand, wait times, and missed calls. Where included, transcription and AI summaries reduce manual note-taking, while coaching tools give supervisors material to review with agents.
4. Privacy & professionalism
A virtual app allows your employees to make calls from personal devices, displaying their business caller ID. This protects your employees’ privacy while maintaining control over customer relationships.
5. High reliability
Traditional systems fail during unexpected events. Leading virtual phone system providers (like Nextiva) use geo-redundant data centers. If one server fails, traffic is immediately rerouted to another, ensuring your business operations continue smoothly.
6. Cost efficiency
On-premises systems incur hidden costs, including maintenance contracts, server room cooling costs, and long-distance call charges. Virtual systems offer flat rates including unlimited calls to the US and Canada, reducing telecommunications costs.
7. Seamless CRM Integrations
Your phone system should be compatible with your other business software. Virtual phone systems integrate with Salesforce, HubSpot, and Microsoft Teams, so that when a customer calls, their account details appear instantly on the screen.
Popular Virtual Phone Providers & Considerations
The virtual phone market is highly competitive, but some providers stand out from the competition. When choosing a VoIP provider, consider not only the price but also the infrastructure.
- Nextiva: Known for its successful balance between user-friendliness and performance for businesses. Nextiva is the first choice for businesses seeking a unified communications platform that combines voice, video, CRM automation, and AI in a single view.
- RingCentral: For a globally operating business, RingCentral is a known service. If you have branches in different countries, its international presence works best; however, the platform can be complex to use for smaller teams.
- Zoom Phone: The logical choice if your team already holds regular Zoom meetings. It offers a seamless transition from voice to video calls, but lacks the call center routing features of Nextiva or RingCentral.
- Grasshopper: A good entry-level phone solution for solopreneurs. It functions as a simple call forwarding app for your personal phone, but doesn’t offer true unified communications features like team chat or video calls.
Top virtual phone providers at a glance
| Provider | Best for | Starting price | Key feature |
|---|---|---|---|
| Nextiva | Small to mid-sized businesses | $15/user/month with annual billing | Unified communications: Combines voice, video, and CRM into one workflow. |
| RingCentral | Global enterprise | $20/user/month, billed annually | Global reach: International calling for multinational corporations. |
| Zoom Phone | Video-first teams | $16/user/month for US & Canada Unlimited, billed annually | Video elevation: One-click switch from phone call to video meeting. |
| Grasshopper | Solopreneurs | From $14/month, billed annually | Simplicity: Business calling, texting, and voicemail through an easy-to-use app. |
Starting prices reflect annual billing. Listed features may require a higher-tier plan or add-on. Taxes and fees may apply.
Key considerations before you buy
- Reliability: Does the provider offer a 99.999% uptime? (Note: Five nines mean less than 6 minutes of downtime per year.)
- Support: Test the support channel before signing a contract. Can you quickly reach a representative, or do you end up in a chatbot loop?
- Scalability: Ask what changes when you add users or move to a contact center plan, including migration work, licensing, and setup fees.
- Total cost: Include required phones, recording, CRM integrations, international calls, and other add-ons in your comparison.
How to Set Up a Virtual Phone System in 4 Steps
With a cloud-based phone service, you can set up your virtual phone system quickly and in a few simple steps. The time required depends on your setup, number porting, and any equipment or network changes.
1. Choose your numbers
Log in to the admin portal and select your new local number or toll-free numbers. If you want to keep your existing business numbers, start the number porting process immediately. Ask your provider to confirm number eligibility, required documents, and the expected porting date. Keep your existing service active until the transfer completes.
2. Add users and extensions
Create profiles for your team members (e.g., “Sarah – Extension 105”). Send invitations using the provider’s onboarding process and assign the permissions each employee needs. Confirm which business number employees should use for outgoing calls.
3. Create your call flow
This is the path a call takes through your system.
- During business hours: Forwarding to the sales team (all sales representatives are called simultaneously).
- When employees are busy: Place callers in a queue or send calls to another available employee.
- Outside business hours: Forwarding to an automated answering system.
Set rules for unanswered calls so callers have a next step when the first destination is unavailable.
4. Download and get started
Have your team download the mobile app and desktop software. If you’ve opted for desk phones, check compatibility and follow the provider’s provisioning instructions. Confirm the required power, network, and firewall settings.
Before launch, test incoming and outgoing calls, transfers, voicemail, after-hours routing, and backup arrangements. Follow the provider’s instructions for emergency-location settings.
Troubleshooting Common Virtual Phone Issues
Start by checking whether the issue affects one device, one location, or the whole team. That narrows down where to test next. Here are the three most common issues and how to fix them quickly:
- Choppy audio (jitter): This is usually caused by an unstable internet connection. Fix: Switch from Wi-Fi to a wired Ethernet connection or enable Quality of Service (QoS) on your router to prioritize voice traffic.
- Dropped calls: Check connectivity and firewall settings. Fix: Ask your IT team to follow your provider’s guidance on required IP addresses, ports, and SIP ALG settings.
- Echo on the line: Caused by feedback loops between a microphone and speaker. Fix: Ensure your volume isn’t too loud and ask your team to use headsets instead of speakerphone.
The Best Virtual Phone System Is Here: Nextiva
The way we work has changed. Your virtual phone system should be an asset, not an anchor.
Here’s how Nextiva business phone plans help you get started:
- Core plan: Perfect for small teams needing essential voice, video, and business SMS.
- Engage plan: Ideal for growing businesses, adding toll-free numbers and advanced voice analytics.
- Scale: The ultimate tool for customer experience. It unifies voice, web chat, and AI-powered transcription into a single view.
Compare Nextiva Business Phone System plans to choose the calling tools your team needs and discuss your setup with Nextiva.
Start calling for just $15/mo.
See why over 100,000 businesses switched to Nextiva. Now you can get it all for $15/month per user.
Frequently Asked Questions About Virtual Phone System
We’ve answered the most common questions about virtual phone systems below.
Pricing depends on the provider, user count, billing term, and included features. Nextiva lists Core at $15, Engage at $25, and Scale at $75 per user per month with annual terms. Hardware, add-ons, taxes, and usage charges can increase the total, so compare the full cost before choosing a plan.
Calling apps and IP phones need an internet connection, but configured forwarding or failover rules may keep incoming calls reaching mobile numbers or another location. Employees can also use supported apps through mobile data or a backup internet connection. Set up and test these arrangements before an outage.
Choose a local number if your business serves a particular city or region. Choose a toll-free number if you want a shared contact number that customers can call without toll charges within its supported calling region.
You can also use both: local numbers for individual locations and a toll-free number for central support. Check coverage and the toll-free usage charges your business will pay.
Look for encrypted calls, multifactor authentication, role-based access controls, and audit logs. Recording and transcript settings should let you restrict access and manage retention. Single sign-on is useful if you manage employee access centrally.
For regulated information, confirm that the service meets your specific requirements. Healthcare practices handling protected health information should check whether the provider offers a business associate agreement and which services it covers. Businesses taking card payments should check for workflows that prevent sensitive payment details from entering recordings or transcripts.
Compare the financial benefits with the total cost of implementation and ongoing service. Include subscriptions, equipment, training, and add-ons, then measure savings from reduced maintenance or replacing other tools.
Track missed calls, answer times, and lead conversions alongside CRM outcomes. Calculate ROI as (net financial benefit ÷ total investment) × 100, using the same reporting period and counting only benefits you can reasonably attribute to the switch.
Test the new system on temporary numbers while keeping your existing service active. Check incoming and outgoing calls, transfers, voicemail, business-hour rules, and after-hours routing before your primary numbers transfer.
Confirm the porting date, assign someone to manage the cutover, and prepare a backup contact method. Test your primary numbers immediately after the transfer and resolve any routing issues before canceling the old service.
In many cases, yes. Number porting depends on the number type, service area, and whether the new provider supports it. Ask the new provider to confirm eligibility and required documents. Keep your existing service active until the transfer completes, then test incoming and outgoing calls.
Many providers support call recording, though features and storage limits vary by plan. Check for automatic or on-demand recording, pause and resume controls, and recording announcements.
Consent requirements vary by jurisdiction and may depend on where participants are located. Confirm the applicable rules and obtain any required consent before recording; an announcement alone may not be sufficient. Document who can access recordings, how long you retain them, and when you delete them.
