Best Multi-Line Business Phone Systems

Multi-line phone systems help businesses manage multiple calls at once without leaving customers waiting or overwhelming employees. Today’s systems go well beyond traditional phone lines, with features like call routing, auto attendants, ring groups and queues that direct callers to the right person or department. Many also bring messaging, video meetings and team collaboration into the same platform, giving employees more ways to communicate whether they’re in the office or working remotely.

The need for flexible business communications remains widespread. Research firm Metrigy found that 32.7 percent of businesses use multiple phone system types, including UCaaS. We researched 20 Voice over Internet Protocol (VoIP) platforms to identify the best multi-line phone systems for different business needs, from small companies to multi-location organizations and remote teams.

Multi-line business phone systems are typically priced per user rather than per phone number. Dialpad and Nextiva have the lowest starting prices among our picks at $15 per user, per month with annual billing. Ooma starts at $19.95 per user, per month, while RingEX starts at $20 with annual billing. GoTo Connect doesn’t publish its rates, so you’ll need to contact the company for a custom quote. Depending on the provider and plan, published prices can reach $75 per user, per month.

Several factors can affect what you actually pay:

• Number of users: Don’t assume that paying for one business phone number covers your entire team. Employees who need their own direct line or access to the system’s desktop or mobile apps generally need a user license. For a small business with several employees answering the same main number, those per-user charges can add up quickly.
• Monthly vs. annual billing: Committing to a year can make a noticeable difference. Dialpad and Nextiva both start at $15 per user, per month with annual billing, while Dialpad’s month-to-month starting price is $27 and Nextiva’s is $23. RingEX also offers lower rates with annual billing. Ooma takes a different approach, charging $19.95 per user, per month for its base plan without requiring an annual contract.
• Plan level: Entry-level plans generally cover the phone system basics, while higher tiers add features like advanced call routing, integrations, analytics and AI tools. Before choosing the cheapest plan, check whether the features your team actually needs are included.
• Add-ons: The advertised subscription price may not tell the whole story. Some providers charge extra for advanced integrations, AI tools and other features. GoTo Connect’s AI Receptionist, for example, is an add-on.
• Hardware: Cloud phone systems don’t necessarily require desk phones, which can keep startup costs down for remote teams using softphones. Businesses that want physical desk phones, headsets or other equipment should factor those purchases or leases into their budget.
• Discounts: Pricing can change based on the number of users and your billing commitment. Some providers offer volume discounts, so it’s worth asking about them as your team grows rather than assuming the published per-user price is what you’ll always pay.

Multi-line business phone solutions provide dozens of tools for small companies, ranging from call handling features to collaboration capabilities. Functionality and capacity differ among vendors and subscriptions, but most services offer the following options.

Voicemail

Voicemail comes with all multi-line business phone services. However, the type of voicemail differs among vendors and subscriptions. Many VoIP providers offer visual voicemail. It displays key message details so users can decide which one to listen to first. Some companies transcribe voicemails so that you can read them on a softphone application.

Auto Attendant and IVR

An auto attendant greets callers and provides menu options, such as “Press 1 for sales.” Our top picks for multi-line business phone systems have virtual receptionist services. Some platforms support multi-level, or two or more, auto attendant systems. An interactive voice response (IVR) solution is more advanced.

IVR services may recognize spoken words and provide self-service tools. Many contact and call center systems use IVR for advanced routing and automation.

Call Transfer

The best multi-line phone systems support call transfer. A blind transfer refers to sending the caller to another team member without speaking to the co-worker first. Conversely, employees can select a warm or attended call transfer. In this case, they can inform their co-worker of any details (without the caller listening) before transferring the call.

Audio and Video Conferencing

Unlike conventional phone services, a cloud-based multi-line phone system supports audio and video conferencing. Business users can interact with clients and co-workers on one-on-one or companywide calls and meetings. Video tools may include advanced features such as AI-enabled transcriptions and summaries, presentation mode, and moderator controls.

Caller ID

This standard feature allows employees to see who is calling, even if they are currently on another line. With caller ID, your staff can put their current caller on hold to answer an important call or ensure they’re transferred to the right person.

Intercom or Paging

Multi-line business phone systems may offer IP (internet protocol) or analog paging and intercom functionality. An IP service lets users announce a message to ring groups or all connected devices. Some VoIP platforms also connect to analog hardware, like overhead speakers. These are perfect for large retail stores, warehouses and restaurants.

Desktop and Mobile Apps

Softphone apps turn computers, tablets and cell phones into full-fledged business phone systems. These allow your staff to make and receive calls, chat with co-workers, and view voicemails from anywhere with an internet connection. Softphone apps typically offer additional features like a contact database and call management functionality.

Follow these steps to choose a multi-line phone system.

1. List current business challenges and communication needs.

A cloud-based PBX system provides the flexibility of multiple lines without the headache of physical infrastructure and cabling. Think about the communication issues your business is dealing with, such as missed calls or ineffective meetings. How can the right multi-line business phone system make a difference?

Consider the following questions:

• On average, how many calls go unanswered or go to voicemail daily or weekly?
• Are employees using multiple applications for calling, video conferencing and texting?
• Do you or other team members need flexibility to answer calls outside the office?
• Have customers complained about long wait times or busy signals?
• Would a toll-free number increase customer trust in your business?

2. Identify must-have features.

The best multi-line business phone systems include core VoIP features like call routing, voicemail and business calling, but what’s included varies by provider and plan. Integrations with the best CRM software solutions or help desk platforms also vary by vendor and subscription. The same is true for AI features, such as call and voicemail transcription, meeting summaries, call analysis and automated receptionists. Likewise, some systems work better for physical workplaces, whereas others are well suited for remote work.

Make a list of the features your company must have. Doing so will help you find the companies and subscription packages offering these tools. Then, you can make an apples-to-apples comparison.

3. Compare multi-line business phone services.

Once you know what you’re looking for, research vendors. Check out guides on the best business phone systems for small businesses and look at user reviews. Compare pricing, plan limitations, mobile app ratings and customer support options, and ask for opinions from those in your professional network. If you’ve narrowed your decision to a handful of companies, learn how they differ by checking out comparison guides, such as Nextiva vs. Ooma.

4. Test VoIP platforms via demos and trials.

Now, it’s time to get into the fun part. Gather your team for product demonstrations. Schedule calls with various vendors and have a list of questions ready. This is your chance to dig into the features and limitations that matter to your business. Take advantage of free trials and test each feature. Involve administrators and phone users.

For example, an IVR system should seamlessly route callers to the right person or queue. On the back end, your administrators should find it relatively easy to build and design the IVR system.

5. Request feedback from decision-makers and end users.

After completing testing, request feedback and listen to the pros and cons. At this point, you should have interacted with the vendor’s customer support teams, tested various features and figured out your total costs. Decide how long it will take to implement and train employees, then determine which multi-line business phone system best fits your company’s needs and budget.

The highest-rated multi-line business phone systems support your company’s high-level objectives, from improving customer support to increasing efficiency. Learn how upgrading your phone service can benefit your organization.

Lower Communication Costs

Previously, having multiple phone lines was simply unaffordable for many small businesses. It required a steep infrastructure investment for a complete PBX system. Instead, companies would opt for a two- or four-line service.

Cloud-based multi-line systems do away with much of this upfront infrastructure. The vendor hosts and maintains the phone system, while your business connects through the internet. Employees can make and receive calls using smartphones, tablets or computers without installing a traditional PBX system. One business phone number supports several simultaneous incoming and outbound calls.

Improve Caller Experiences

Let’s face it. Consumers haven’t gotten more patient over the years. A busy signal frustrates them. With a multi-line phone system, you can design caller experiences that work for your business and callers.

An auto attendant greets callers automatically and then rings your employees’ phones. You can put them in a waiting queue if they don’t pick up. This queue can have on-hold music or promotional messages. In some cases, you can offer to call them back or send them to voicemail. Employees can also see who is calling with CRM integrations, and even if they’re on another line, they can send a quick text to a customer to let them know that they’ll call back as soon as possible.

Increase Employee Productivity and Collaboration

Task and app switching breaks concentration. And working remotely has its own set of challenges. A multi-line phone system provides the flexibility to support modern working environments. AI-powered tools keep teams focused in meetings. Let AI take notes, automatically capture task assignments and summarize key points.

Warm call transfers allow team members to brief a co-worker or supervisor before handing off a caller, helping create a smoother customer experience. Integrations and browser extensions mean users don’t need to switch apps to answer phone calls or text messages. All of these things lead to increased productivity and team collaboration.

Centralize Communications

Many small businesses cobble together several cloud-based tools to communicate. These may include video meeting software, audio conferencing services, email, mass text marketing tools and chat messaging programs like Slack. This can get messy and hard to keep up with, so many multi-line phone services are unified communications (UC) systems.

A UC platform puts most of your communication methods on one integrated system, from internet fax to team messaging. It’s accessible from anywhere with an internet connection via mobile and desktop apps.

Boost Visibility Into Business Operations

A multi-line business phone system provides call logs and analytics. With details about call volumes and missed calls, leaders can improve scheduling and hiring decisions. Historical data helps with seasonal planning, whereas insights about employee usage can signal who needs further training.

To determine the best multi-line business phone systems, our team of communications experts and software analysts started with the 75 business phone platforms we track across the category. We focused on systems that could handle multiple simultaneous calls and researched 20 of them more closely, evaluating their call handling capabilities, pricing, usability, integrations and customer support. We ultimately selected five best picks, assessing each system on more than 25 factors.

These factors were weighted differently in our overall conclusion. The weights were determined based on how much business owners prioritize these criteria when shopping for business software and services and making purchasing decisions.

• Pricing (30 percent): We compared monthly and annual rates, plan options, add-on costs and other fees. We also considered what businesses get for the price and how costs change as they add users or move to higher-tier plans.
• Features (25 percent): We looked closely at the tools businesses need to manage multiple calls, including ring groups, call queues, call transfers, auto attendants and IVR. We also considered collaboration tools and AI features, such as transcription, call summaries and analytics.
• Ease of Use (20 percent): We evaluated how easy each system was to set up, navigate and customize, including the process for configuring users, extensions and call flows. We also considered the quality of each provider’s desktop and mobile apps.
• Integrations (15 percent): We looked at integrations with commonly used business applications, including CRM and help desk software. We also considered whether vendors offered APIs for creating additional connections.
• Customer Service (10 percent): We evaluated the support channels available to customers, including phone and chat assistance, along with each vendor’s online help resources.

Based on these criteria, we identified the systems that stood out for different business needs. Some were better suited to small businesses or remote teams, while others offered tools that made them a better fit for collaboration, multi-site businesses or companies prioritizing voice intelligence. These findings informed the “Best for” use cases on this page. To learn more about our methodology, see our full editorial process.