The best multi-line phone system for small businesses optimizes communications and boosts productivity by enabling teams to manage multiple incoming and outgoing calls. When choosing the right system, consider scalability, display interface, advanced features, and integrations with existing technology. Our guide selects the seven best multi-line phone systems for small businesses to help you find the perfect solution for your business needs.
- Cisco 8865: Best overall multi-line phone system
- Grandstream GXV3370: Best for built-in videoconferencing
- Nextiva X-885: Best for scalability
- Poly VVX 601: Best for managers and executives
- AT&T TL86103: Best for mobile phone integration
- Poly VVX 150: Best low-cost, entry-level phone
- Mitel MiVoice 5330E: Best for high customer call volume
Best Multi-line Phone Systems Compared
Multi-line Phone Systems | Key Features | No. of Lines Supported | FSB Rating | |
|---|---|---|---|---|
 Cisco 8865 | $399.99 |
| 5 lines | 4.29 out of 5 |
 Grandstream GXV3370 | $210.43 |
| 16 lines | 4.19 out of 5 |
 Nextiva X-885 | $190 |
| 12 lines | 3.74 out of 5 |
 Poly VVX 601 | $103 | 16 lines | 3.73 out of 5 | |
 AT&T TL86103 | $156 |
| 4 lines | 3.62 out of 5 |
 Poly VVX 150 | $78.95 |
| 2 lines | 3.51 out of 5 |
 Mitel MiVoice 5330E | $85.65 |
| 20 lines | 3.51 out of 5 |
Cisco 8865: Best Overall Multi-line Phone System
What We Liked
Where It Falls Behind
- Doesn’t have a touchscreen, limiting convenience
- Requires IT familiarity to set up and maintain
- Limits small desk configuration given bulky design
The Cisco 8865 is our best multiphone system for small businesses because of its excellent video and audio quality and five-line capacity, which is perfect for small teams.
It comes equipped with essential features such as a high-definition speakerphone, a vibrant color display, and caller ID, all designed to meet the demands of growing businesses. The five-inch high-resolution color display and 720p HD video ensure clear and professional video calls.
Because of its large videoconferencing screen, it has a sizable footprint that makes it cumbersome to fit on a small desk with other office equipment. Larger devices are also more difficult to relocate or reconfigure within the office. For a more compact phone device, give the Poly VVX 601 a try. It has a touchscreen interface and a more space-efficient design.
- Full-duplex speaker: Experience clear and natural conversations with the Cisco two-way speakerphone. This tool is ideal for small to medium-size conference calls and meetings.
- High-resolution video: Enjoy vibrant face-to-face visuals with 720 HD desktop video, enhancing the overall user experience. The Cisco 8865’s five-inch high-resolution (800×480) widescreen video graphics array (VGA) backlit color display also has an attractive ergonomic design for easy viewing and comfort.
- Fixed function keys: Quickly access essential functions and frequently used features with one tap, enhancing convenience and efficiency. Streamline tasks like directory access, call transfers, conferencing, and call parking.
Get the optional Cisco 8865 Key Expansion Module for single-button access to key features. (Source: Cisco)
Grandstream GXV3370: Best for Built-in Videoconferencing
What We Liked
- Syncs easily with mobile devices
- Offers Bluetooth and Wi-Fi connectivity
- Provides 7-way audio conferencing
Where It Falls Behind
- Has less responsive customer support than other providers
- Overwhelms VoIP beginners with some of its complex features
- Requires familiarity with the Android operating system
The Grandstream GXV3370 is an Android-based IP video phone with a seven-inch touchscreen display, a megapixel camera with a privacy shutter, and Bluetooth/Wi-Fi connectivity—providing high-quality video and seamless integration for videoconferencing. It expands to as many as 16 phone lines, and users can stream internet radio through the Grandstream GXV3370.
However, the Grandstream GXV3370 operates on Android 7.0, which may require some familiarity with Android technology. For a more user-friendly desk phone with a built-in video camera, consider the Cisco 8865, which benefits from recent firmware updates and offers an intuitive interface with excellent call quality.
- Call management: Enhance caller experiences with features like call forwarding, hold, transfer, caller ID, voicemail, and call waiting. Stay on top of communications with the visual ringer light and voice message waiting indicator, ensuring you’re always informed about incoming calls and messages.
- Advanced tools: The Grandstream GXV3370 offers enterprise-grade functionality with software development kit (SDK) support for custom apps, web browsing capabilities, and built-in tools like an alarm, calendar, and clock, suited for growing teams. This multi-line phone system also supports both local and cloud call recording.
- Multiple protocol support: The Grandstream GXV3370 works with several IP private branch exchange (PBX) and VoIP services, including Google Voice, Skype, Zoom, and WhatsApp.
The GXV3370 IP video phone features real-time HD video telephony. (Source: Grandstream)
Nextiva X-885: Best for Scalability
What We Liked
- Includes speed dialing feature
- Features 12 additional programmable keys
- Offers advanced call handling options (e.g., call forwarding and 3-way calling)
Where It Falls Behind
- Includes fewer phone lines compared with other providers offering 16 and 20
- Requires use of an additional USB dongle for Wi-Fi connectivity
- Offers colored LCD but isn’t a touchscreen
The Nextiva X-885 integrates up to three expansion modules with customizable quick-action keys, which is great for growing businesses.
Expansion modules enhance call routing accuracy by using programmable keys, giving you direct access to frequently contacted numbers and essential functions. As a result, call routing becomes more accurate, reducing transaction times and improving customer satisfaction and operational efficiency.
This device integrates seamlessly with Nextiva’s platform, offering tools like call analytics and customer relationship management (CRM) integration for business growth. Unfortunately, the Nextiva X-885 requires third-party dongles and adaptors for Bluetooth and Wi-Fi.
Users simply connect an A210 Wi-Fi dongle to set up Wi-Fi for the Nextiva X-885. While the setup is straightforward, those seeking built-in connectivity may prefer the Grandstream GXV3370, which features integrated dual-band Wi-Fi.
- Warm call transfer: Easily transfer calls and improve coordination by speaking to the receiving agent before completing the transfer. Simply press the transfer button on the phone, dial the call receiver’s number, and press the check mark. After your brief conversation, press the transfer button again to complete the process.
- Voicemail: Listen to your voicemail messages by accessing the voicemail box from a Nextiva phone or external phone. Use the voicemail portal to access messages and create personalized greetings that callers will hear before leaving their messages.
- Speed dialing: Dial phone numbers instantly with a click-to-call that can be set up from the Nextiva dashboard. Preprogram your quick dial with your most commonly dialed numbers or extensions to increase productivity.
Scroll through the options and lists in the settings menu. (Source: Nextiva)
Our Nextiva review details why the cloud provider is one of our recommended business phone systems. It combines extensive VoIP features for team collaboration and customer interfacing, making it ideal for small and large businesses.
Poly VVX 601: Best for Managers & Executives
What We Liked
- Accommodates both handsets and VoIP headsets
- Allows distinctive rings to differentiate incoming calls
- Signals new voicemail messages with a notification light
Where It Falls Behind
- Lacks videoconferencing for a high-end phone
- Works best within the Poly system; limited external integrations
- Doesn’t have caller ID
The Poly VVX 601 is the best VoIP phone for executives, thanks to its multi-touch, gesture-based user interface that streamlines call management and offers quick access to information. Distinctive rings are also beneficial for time-constrained managers who want to prioritize which calls to answer immediately. It supports up to 16 lines, allowing users to handle high call volumes and complex workflows efficiently.
The Poly VVX 601 delivers crystal-clear communication with HD voice and supports voicemail and video mail, keeping executives connected when unavailable. Unfortunately, it lacks a built-in camera but is compatible with the Poly VVX Camera for videoconferencing. For an integrated solution, the Grandstream GXV3370 offers a 7-inch touchscreen and HD videoconferencing with its advanced megapixel camera.
- Display: Enjoy a sleek, modern interface with a 4.3-inch color touchscreen and a 16:9 aspect ratio. The vibrant and clear display provides an easy-on-the-eyes, intuitive calling experience.
- Tablet functions: The Poly VVX 601 is the best multi-line phone system on our list, and it integrates with Microsoft Exchange calendars for efficient scheduling and reminders. It also offers quick access to corporate directories, sends reminders or alerts, and connects with productivity apps via open APIs.
- Navigation: Use the phone with ease, thanks to the Poly VVX 601’s intuitive interface, which features easy navigation and 12 programmable keys for quick access to important details. When idle, you can see the time, date, and essential soft key functions and view caller information for all incoming calls.
The Poly VVX 601 features a 4.3-inch LCD with 480×272 resolution. (Source: YouTube)
AT&T TL86103: Best for Mobile Phone Integration
What We Liked
- Connects to Bluetooth-enabled cell phones
- Allows mobile phone charging through two USB ports
- Includes a handset and base speakerphone
Where It Falls Behind
- Lacks touchscreen capabilities
- Limits mobile notifications to Android mobile phones
- Offers audio-only communication
The AT&T TL86103 includes Bluetooth pairing capabilities within up to four mobile phones, which is ideal for frequent travelers and field workers. Connecting the VoIP phone system to your cell lets you make and receive calls from your cell phone and landline.
Use its built-in USB dock to charge two compatible mobile phones simultaneously and enable mobile notifications to know when you receive texts, emails, or social media updates.
Even with all its mobile connectivity, it only has basic phone functionality like caller ID and announce, intercom, and call screening. For the best multi-line phone system for unified communications (UC), try the Nextiva X-885, which integrates seamlessly with Nextiva’s cloud phone system.
- Hearing-aid compatible: The AT&T TL86103 is compatible with hearing aids, making the device inclusive and senior-friendly. It’s designed to minimize audio interference and background noise for a clearer, more reliable conversation.
- Integration: With the AT&T Softphone Call Manager, users can transfer online calls into their business phone system. It merges Microsoft Lync, Skype, VoIP, and landline telephone services, giving you a flexible multi-line phone system.
- Message alert tone: When this feature is enabled and you have at least one new message, the telephone base beeps every ten seconds. You can change this setting or set the alert tone off. This audible alert is only available on the base device, not the handset.
Pair up to four cell devices and manage a phone system even without a landline. (Source: Amazon)
Poly VVX 150: Best Low-cost, Entry-level Phone
What We Liked
- Offers a user-friendly, simple-to-use interface
- Integrates with over 60 leading call control platforms
- Includes a web-based configuration tool for easy administration
Where It Falls Behind
- Features a small 2.5-inch monochrome display, much smaller than many competitors
- Doesn’t connect to wireless headsets
- Lacks a Wi-Fi and USB port
The Poly VVX 150 is an affordable two-line VoIP system with essential call-handling features like call waiting and one-touch speed dial, which is ideal for small teams that don’t have experience with multi-line phone systems.
The Polycom Acoustic Fence technology eliminates unnecessary background noises and echoes, ensuring clear conversations. Its intuitive design makes it easy to use with minimal training, perfect as a primary phone or in shared spaces.
Poly HD Voice and Poly Acoustic Clarity features deliver great sound and noise-canceling capabilities. However, for on-the-go employees who need flexibility and mobility, the AT&T TL86103 offers the same simplicity found in the Poly VVX 150 with the added benefit of two-line operation.
This flexibility allows users to manage calls on two separate lines. It also includes wireless headset connectivity and Bluetooth pairing capabilities within up to four mobile phones.
- Local conferencing: The Poly VVX series phones have a conference feature where one person is called and put on hold, followed by calling another person and then joining. Users can split conference calls into two held calls, which is helpful for privacy or quick consultations.
- HD audio: The Poly VVX 150 is supported by Polycom Acoustic Clarity technology, providing full-duplex conversations, acoustic echo cancellation, and background noise suppression. The phone model has individual volume settings, visual feedback for each audio path, and comfort noise generation to enhance call quality.
- RingCentral Corporate directory: RingCentral’s corporate directory feature for Poly phones allows you to search groups or contacts within your company by first or last name. Results display in a list, and only account administrators can update users listed in the directory. This feature is automatically activated on supported desk phones configured via RingCentral’s Assisted Provisioning.
Poly VVX 150 allows users to switch between phone screens. (Source: Poly)
Poly VVX 150 is an entry-level IP phone that integrates with various VoIP service providers, including RingCentral. Its reliability and enterprise-grade sound quality make it ideal for small offices, home operations, or common spaces. Our comprehensive RingCentral review details its key features, use cases, pricing options, and alternatives.
Mitel MiVoice 5330E: Best for High Customer Call Volume
What We Liked
- Works using VoIP or landline phone services
- Lets users customize settings and keys
- Has a large backlit graphics display (160×320) with auto-dimming
Where It Falls Behind
- Lacks a touchscreen display
- Doesn’t work with RingCentral VoIP services
- Supports audio calls only, lacking videoconferencing features
The Mitel MiVoice 5330E is the best multi-line phone system for small businesses with 20 lines—ideal for high-pressure service departments looking to reduce client wait times.
Its large backlit display simplifies navigation of 24 programmable keys, 12 fixed function keys, and three context-sensitive keys, boosting productivity and reducing errors. The full-duplex, hands-free speakerphone with a wideband handset provides clear audio and minimizes agent fatigue.
Despite being ideal for busy call centers and hotlines, the MiVoice 5330E struggles with compatibility issues, experiencing slower connectivity with other VoIP providers. For quicker and more seamless integration with popular VoIP services like Vonage Business, RingCentral, Nextiva, and 8×8, consider the Grandstream GXV3370 a more suitable alternative.
- Customizable keys and settings: Use a browser-based desktop tool to configure 24 programmable keys for quick access to employees, suppliers, supervisors, or VIP clients. The 12 fixed-function keys provide convenient access to contacts, telephony features, web browsing, and user settings.
- Versatile connectivity: The Mitel 5330E works with cordless accessories like digitally enhanced cordless telecommunications (DECT) headsets and cordless phones. Unlike other IP phones on our list, this MiVoice model works on both VoIP and analog phone lines, so business owners can use a landline as a fallback if the company has an internet outage.
- Programmable VoIP features: Easily program essential VoIP features into three context-sensitive soft keys, or access them via menu keys. This gives you one-touch control of call history, forwarding, visual voicemail, and call details, streamlining your communication experience.
Place an active call on hold and retrieve it from any other phone within the system. (Source: Mitel)
How We Evaluated the Best Multi-line Phone System for Small Businesses
Multi-line phone systems vary greatly regarding features and the maximum number of lines supported. While some business owners want to build a system with only the most affordable VoIP phones, others look for advanced capabilities to help agents and users, such as built-in Wi-Fi and touchscreens.
We considered various use cases and chose the top multi-line business phone systems for each use. Review our evaluation criteria for the best multi-line phone systems for small businesses.
25% of Overall Score
We compared the prices for multi-line phone systems across several retailers to find affordable solutions for small business owners. In addition, we looked at models offered for sale or lease by VoIP providers.
30% of Overall Score
We examined various phone systems to ensure each one encrypts calls and comes with a speakerphone. We also considered the number of lines supported by each phone and verified that the models have a headset jack.
20% of Overall Score
Since many business users want their desk phones to resemble smartphones, we reviewed phone models with touchscreens, Wi-Fi, and Bluetooth. Plus, we checked for USB ports and (built-in or optional) videoconferencing tools.
10% of Overall Score
One of the most crucial aspects of being a phone service provider is providing timely and effective customer service. We considered the available channels, alternatives, and community feedback on response time and communication channels.
15% of Overall Score
We determined our expert score by assessing the overall popularity of each multi-line phone system, its unique or standout features, ease of use, and value for the price.
Frequently Asked Questions (FAQs)
Setting up a multiphone system starts with connecting phone lines to the main unit or base station. Configure settings by assigning phone lines to individual handsets and setting up features like call forwarding and voicemail. Before launching your system, test the setup by placing calls to check if everything functions as it should.
Yes, multi-line phone systems can often be connected to existing analog or digital phone lines. Ensure the system is compatible with your current phone service or VoIP setup. Installation might require a professional if integrating with complex setups.
No, a multi-line phone system manages several lines through a single device and can be answered from different locations within an office. On the other hand, a PBX system is more advanced, handling internal communication within larger organizations and routing calls to the proper place using an automated directory. PBX systems are often more complex and suited for larger enterprises.
Bottom Line
Investing in the best multi-line phone system improves your company’s efficiency by streamlining call management, enhancing connectivity, and reducing downtime. While high-end models offer advanced features like tablet-like interfaces, small businesses with lower call volumes might not need all the extras.
With a rating of 4.29 out of 5, the Cisco 8865 excels as the top multi-line phone system for small businesses, offering video and audio quality, a high-resolution display, and collaboration capabilities. If you’re ready to upgrade your office setup, explore Cisco 8865 and other top options to find the best fit for your business needs.
