Best On-Premises Business Phone Systems
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Compare the Top On-Premises Business Phone Systems as of April 2026
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What are On-Premises Business Phone Systems?
Business phone systems are advanced communication networks designed to manage and streamline voice calls and other communication channels within organizations. They range from traditional landline systems to modern VoIP (Voice over Internet Protocol) solutions, offering features like call forwarding, voicemail, auto-attendants, and conferencing. These systems can be tailored to fit businesses of all sizes, from small startups to large enterprises, ensuring seamless internal and external communication. Many modern phone systems integrate with other business tools like CRM software to enhance productivity and customer service. Reliable and scalable, business phone systems play a crucial role in maintaining efficient operations and fostering collaboration. Compare and read user reviews of the best On-Premises Business Phone Systems currently available using the table below. This list is updated regularly.
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1
Yeastar P-Series PBX System
Yeastar
The Yeastar P-Series Phone System is a comprehensive business phone system that unifies voice, video, and collaboration into a single, high-performance platform. Engineered for the modern enterprise, it replaces fragmented communication tools with a streamlined "PBX-Plus-More" ecosystem. -
2
PBXware
Bicom Systems
PBXware is the world’s first and most mature IP PBX Professional Open Standards Turnkey Telephony Platform. Since 2004, PBXware has deployed flexible, reliable, and scalable Next Generation Communication Systems and VoIP solutions to Small and Medium sized Businesses (SMBs), enterprises, Internet Telephony Service Providers (ITSPs), Call Centers and governments worldwide by combining the most advanced of the latest technologies. Bicom Systems’ softswitch is offered in the Business, Call Center and Multi-Tenant Editions, each supporting specific features maximizing performance, reliability, and expandability. -
3
KrispCall
KrispCall
KrispCall helps you manage your personal, business, and corporate telephony requirements all from a single app (Web, Android, iOS). Get international numbers right from the comfort of your home. KrispCall helps you own national, toll-free, local, shortcode, and international numbers (for over 100 countries) in no time. Manage your call logs effortlessly. KrispCall’s unified callbox allows you to handle and monitor your business calls, recorded conversations, texts, and voicemails all from a single window. Earn trust of your international clients by calling them through their local numbers. KrispCall offers international phone numbers for your business at the most affordable price. With our embeddable widget, you are just a click away from your customers. Clients can now call you directly without hassles by simply clicking on the KrispCall’s widget embedded in your website.Starting Price: $15 per user per month -
4
Thirdlane
Thirdlane
Thirdlane is a scalable UCaaS platform that blends multi-tenant PBX, Contact Center, and collaboration apps into one solution. MSPs, Enterprises, and telecom providers adopt Thirdlane when they want freedom of deployment, deep integrations, and reliable control over their communications stack. Whether your team prefers cloud-hosted services or on-premises deployments, Thirdlane adapts to your strategy. IT departments appreciate the API-first design, while business leaders value the ability to cut costs and avoid lock-in. Core benefits: - Enterprise-grade PBX with calling, video meetings, voicemail, and advanced routing. - Unified Thirdlane Connect apps for chat, video meetings, and file sharing. - Built-in Contact Center - Advanced analytics to improve service and sales. - CRM integration for context-rich customer interactions. - White-label branding across all user touchpoints. - Options for geo-redundancy and high availability. -
5
Ozonetel
Ozonetel
Setup a full-fledged contact center from scratch in hours. Add cloud capabilities while keeping your on-prem hardware. Migrate from legacy to cloud overnight. At Ozonetel, we connect you with product experts who will deeply understand your requirements before recommending a solution that perfectly matches your business goals. Cost-effectively unify and automate digital and voice channels. Top rated dialers to accelerate inbound lead management & outbound campaigns. Setup a complete call management system in 24 hours or less. Comprehensive inbound, outbound, and blended call center solutions. At Ozonetel, we offer secure, cloud-based communication solutions that provide a better customer experience at a lower total cost for contact centers. We are known for developing and launching the first cloud-based customer experience platform in the Indian marketplace. Since then, unparalleled customer support and continuous AI innovation continue to set us apart.Starting Price: $25 per month -
6
Global Call Forwarding
Global Call Forwarding
Buy toll-free numbers and local phone numbers from more than 160 countries without commitment. You can route incoming calls to any phone, PBX, or SIP worldwide. Our global network has multiple layers of redundancy. Make international outbound calls and show any of your business phone numbers as Caller ID. Connect our SIP trunks to your phone system or use the GCF softphone to make outbound calls. Easily set up and modify smart call routing features like auto-attendant / IVR, location & time-based routing, local ringback tones, simultaneous ring, customized greetings, call recording, voicemail, and more. Easily add or remove virtual numbers, change calling plans, download your invoices and call detail records, modify advanced features, reach live technical support 24/7, and contact your account manager.Starting Price: $7.95 per month -
7
Digivoice
Digivoice
Fully featured, cloud-hosted, quality VoIP service for all your business needs. Nationally available, locally-owned in Southern Utah, and competitively priced to help your business succeed. Sign up on our site, choose how many phones you need, get us a copy of your bill, put in your information, and we completely do the rest from setup to training. Our rates are already low, but we'll match competitors' quotes just to prove it. We're so confident in our service, we don't have contracts because our service speaks for itself. Also, all our features are already included in the price, bundles, and packages are so 2009. Unlimited calls, SMS, eFax, dashboards, reporting, analytics, call recording, hold music, custom calendars, professional voice recording, ring groups, call flow management, IVR systems, automatic text sending, mass messaging, multi-media messaging, video calls, voicemail transcription, call logs, 24/7 customer support, etc.Starting Price: $17.95 per month -
8
Yay
Yay.com
A powerful feature-packed Cloud phone system to help your business thrive. Flexible, scalable and compatible with the devices you already use, Yay.com offers a communication solution that combines a host of of professional features with lightning fast set-up and ease of use. Built from the ground up to support businesses around the world, wherever they're based. Connect teams and collaborate across borders in minutes with a dynamic phone system that lets your teams work the way they want to. Deliver improved caller satisfaction through a range of business features such as CRM integrations, call queuing, IVR call menus and more. Get started with a free trial and discover how our phone system can seamlessly enhance your business and help you reduce your business costs today.Starting Price: $6.99 per user per month -
9
OfficeConnect
UniVoIP
OfficeConnect™ provides unified voice, conferencing, messaging, fax, and more. Our state-of-the-art VoIP phones are far more flexible and cost-effective than legacy on-premises systems. Keep your projects moving and synchronize your teams with best-in-class audio and video conferencing made simple. UniVoIP encrypts all voice packets—from both remote and on-site phones—using SRTP with 128-bit AES encryption. SRTP is compliant with both the federal standards for FIPS 140-2 Certified Encryption and the Department of Defense’s PKI Digital Certificate.Starting Price: $18.95 per user per month -
10
HoduPBX
Hodusoft
HoduPBX is the ultimate solution for business communication. Its unprecedented user interface with optimal user experience facilitates businesses to communicate with the end users efficiently. This software offers world-class connectivity within an office and from the remote location leaves communication an uninterrupted process. Get HoduPBX and empower agents’ work management with multitasking abilities and efficiencies. With 1000+ concurrent calls and 10,000 extensions, our IP PBX software is one of the best choices for business communications. Here are HoduPBX’s key features: Multi-Tenant Auto Provisioning Least Call Routing (LCR) Real-time Analytics and Reports Queue Monitoring Multi-level IVR BLF & Presence Prepaid & Postpaid Billing Payment Gateway Integration Audio-conferencing SMS Hosted IP PBX Software -
11
Traverse Telecom
Traverse Telecom
Explore a world of solutions for your communication issues all under one roof. Be a part of Traverse Telecom and let your customers connect seamlessly! Strengthen your entire business structure with the best phone connectivity. Welcome your customers with a genuine standard telephone service while working from anywhere. Connect with your global customers and gain International reach using our class leading International toll-free 800 numbers. Feel the need to get global? Open your business to the World by utilizing our Direct Inward Dialing (DID) features from more than 90 countries. Why miss a potential business opportunity by missing a call. With our call forwarding facility you can route your customers’ call to your chosen business location depending on your priority. We provide all Cloud PBX Solutions to negate the need for an on-premises system. Cloud PBX offers the most flexibility and control, all with an advanced feature set.Starting Price: $0.01 per minute -
12
MikoPBX
MikoPBX
MikoPBX is a full-featured phone solution with a top performance level, high stability, and rich functionality. You can install MikoPBX on-premise (hardware installation) or in any type of cloud service (Google cloud, Amazon Cloud Solution, Microsoft Azure, etc.) MikoPBX is a free phone system, all basic business functionality is absolutely free. The system has an easy and convenient web interface, call recording, conference calls, voice mail, call transfers and pickup, call queues, an interactive voice response(IVR) menu, and inbound and outbound call rules. Also, you can find holidays and night-time calls switchers there. MikoPBX has the ability to extend functionality with plugins and modules from developers around the world. MikoPBX is completely free, you can use add-ons that extend the capabilities of your PBX. MikoPBX does not license each user. Expand your company without additional costs for new employees or call recordings.Starting Price: $100 per request -
13
Kloud 7
Kloud7 (often stylized as Kloud 7)
Kloud7 is a comprehensive business technology provider specializing in Managed IT Services, Cloud Telecommunications (VoIP), and Unified Communications (UCaaS). Designed as a "one-stop shop" for Small to Medium-sized Businesses (SMBs) and enterprises, Kloud7 replaces outdated infrastructure with scalable, internet-based solutions. Their flagship offering, Business Voice, is a cloud-hosted phone system that enables users to make calls from desk phones, computers, or mobile apps, facilitating seamless remote work. Key features include AI-powered call recording with sentiment analysis and deep analytics. Beyond voice, Kloud7 offers Managed IT Services, acting as an outsourced IT department that handles cybersecurity, server management, disaster recovery, and 24/7 technical support. Their portfolio also includes Transmit, a mass communication tool for SMS and voice marketing, and K7 Connect, a unified platform integrating voice, video, and messaging with tools -
14
CompletePBX 5 IP PBX
Xorcom
Virtual IP PBX (Private Branch Exchange) or Phone System Appliance – CompletePBX is the heart of Xorcom hardware and software phone systems. Built on top of the solid Linux and Asterisk platforms, it’s built for stability and performance. CompletePBX was designed from the ground up to combine ease of use, advanced features and security at every level. Download free, fully functional CompletePBX 5 VM – evaluation virtual machine now! Check out our FREE online certification training course that will take you step by step through all the basics of CompletePBX system. Save a lot of time and effort by trying to go at it alone. Let us help you get there faster. -
15
Ecosmob
Ecosmob Technologies Pvt. Ltd.
Ecosmob offers market-leading expertise and solutions to power businesses across the world implementing trending technologies. Modernize your network with customized solutions that are highly advanced and cost-effective. With extensive expertise in Open Source telephony development, Ecosmob provides innovative VoIP services tailored to suit your business needs. Create interactive, scalable, and robust web applications using the most advanced tech stacks and frameworks. Take your business to the next level with a responsive website designed to be user-friendly and set your brand ahead of your competition. Expand your digital reach and target a wide spectrum of customers via mobile application development services. We build customized, highly scalable, and robust mobile applications to match your business requirements. Unlock new business possibilities and opportunities with AI and ML technologies.Starting Price: Custom -
16
AtcomCloud
Atcom
A made-in-Canada VoIP solution for businesses with 5 users and up. Let our VoIP experts design the perfect blend of hardware endpoints, network gear, & ISP connections for your location. We help YOUR company communicate with YOUR client base using crystal clear VoIP every time!Starting Price: $19.90 per month -
17
VoIPline Telecom
VoIPline Telecom
Take control of your business communications. No technical skills are required. VoIPline Telecom's phone system provides you with full control over your business communications using a visual block diagram accessible via any web browser. Drag-and-drop configuration: Add over 30 telephony configuration tools to the canvas with a simple drag-and-drop. Arrange objects as you like. Visual call flow customisation: Customise the flow for incoming calls by linking one object to another. The entire call flow is visually clear even for users with no technical skills - you can see every step of how an incoming call will be handled step by step. Separate call logic with tabs: In addition to a single call flow configuration canvas, a whole host of such canvases can be created. This can be useful to separate the call logic so as not to overcomplicate a single canvas.Starting Price: $1.05 -
18
MiVoice Business
Mitel Networks
The on-premise business phone system that has everything your organization needs to deliver great customer experiences. MiVoice Business is at the heart of Mitel’s leading on-site communication solution (comprising of MiVoice Business, MiCollab, MiTeam Meetings & MiContact Center Business), enabling your organizations employees to instantly benefit from unified, scalable and mobile communications. It’s everything your business needs to take its communications to the next level—through mobility, team collaboration, video conferencing and exceptional customer experience delivery. MiVoice Business is designed to meet the needs of businesses from 5 to 130,000 users, in a single site or a multi-site network that spans the globe. Software running on Mitel Collaboration Service Appliances can be installed on industry-standard x-86 servers in a virtualized environment, which eliminates the need to support multiple appliances, especially for customers who choose a centralized UC deployment. -
19
Eclipse CMS4
Datatrack
See a quick return on investment through cost savings, improved operational efficiencies and better customer service. Our Call Management System (CMS4) provides organizations with the ability to take control of their telephony costs with detailed analytics on performance. Whether you have a small system or a large clustered worldwide network, CMS4 will provide you with the information you need and in the format you require. CMS4 is provisioned either as an On-Prem, Cloud or a complete hosted managed service solution. Whether you have a small system or a large clustered worldwide network, CMS4 will provide you with the information you need in the format you require. You can use CMS4 to measure the traffic at each gateway or trunk group and produce grade of service reports that will clearly show you if your capacity matches your demand. This information can be used to ensure that your system is running efficiently to meet current demand and forecast future requirements. -
20
Yeastar K2 IP PBX
Yeastar
Available as hardware and software, Yeastar K2 IP PBX supports 2000 users, 500 concurrent calls and 400 VoIP trunks across locations, providing medium and large enterprises with full flexibility and capability. Engineered for the communications needs of today and tomorrow, Yeastar K2 IP PBX delivers enterprise-level features with exceptional reliability, and enables extraordinary remote working agility with next-level Linkus UC Softphone. -
21
Horizon Hosted Phone System
Cavendish
Horizon hosted phone system is a complete business communications service that provides an extensive range of fixed and mobile telephony capabilities via an easy-to-use web portal. Horizon is the number one cloud telephony solution on the market today and has the most comprehensive list of features to support every business regardless of size or business structure. Horizon is the number one cloud phone system on the market today and has the most comprehensive list of features to support every business, regardless of size. Cavendish was one of the first telecom organizations to start providing Horizon, so we have a wealth of experience in provisioning, installing, training, and supporting every type of phone system configuration modern businesses require. Provide callers with menu options for call routing using auto attendant. Use your number and preferences on any enabled phone in your company. -
22
ITC Cloud
In-Telecom
Our cloud-based phone systems have the option of coming with ITC Cloud, which offers HD Video meetings with chat and recording options in addition to VoIP phone service. Perfect for virtual meetings to stay connected with clients and employees. Ready to improve your productivity?Starting Price: $25 per month -
23
Enconvo
Enconvo
Enconvo is a cloud-first business communications and unified communications platform that delivers modern telephony, collaboration, connectivity, mobility, and video conferencing tools in a single, flexible system built for hybrid and remote work. At its core, Enconvo Contact provides scalable cloud telephony that replaces traditional on-premise phone systems with features such as call management, call recording, professional voicemail, call analytics, on-hold marketing, and fixed mobile convergence so teams can stay connected on any device. It supports softphone apps for mobile, tablet, and desktop that allow users to make and receive business calls and messages via VoIP, separate work and personal contacts, and access voicemail and call history from anywhere. Enconvo also includes cloud phone system integrations with CRM and third-party tools to streamline workflows across business apps, and lets organizations deploy video conferencing through Enconvo Meetings. -
24
Unified Office
Unified Office
Unified Office, Inc. is a leading Managed Services Provider of Business Class Communications Services to Small and Medium-sized Businesses. Unified Office is a provider of fully managed business VoIP services, integrating a quality and support program that starts with a prospect engagement, through a site survey, network and call quality assessment process, and extends all the way through the integration, testing, deployment and support lifecycle. Around the clock, we proactively monitor all end-to-end service assets (on-premise, private/public cloud, hardware, software, quality, availability), using specially developed diagnostic tools. Our commitment to supporting our business customers and resellers is paramount. Internet of Things (IoT) solutions have generally been marketed to and purchased by large enterprises. There are huManaged VoIP services provider Unified Office has extended its year-old Internet of Things (IoT) operational performance service. -
25
OpenText CX-E Voice
OpenText
Deployed on-premises or in the Cloud, CX-E offers seamless integration with all major communications platforms – Avaya, Cisco, Microsoft, Mitel, NEC and more – complimenting any telephony and email infrastructure. Industry-leading functionality with end-to-end voice message encryption. Mobile application, single number reach, smart call forwarding, separated business & personal communications, inbound call screening, mobile number protection, and more. Ties together voicemail, email, and fax into one inbox. Text-to-speech, voicemail transcription, and secure messaging available. Speech enabled, hands-free/ eyes-free access to calendar, email, fax, and voicemail. Federated presence to calendar to play an informative personal greeting. Supports multiple attendants, speech-recognition interfaces, greetings for different departments, multilingual interfaces, scheduled messages, and more. Perform customized automated outreach via telephone calls or text messages. -
26
Verge Network Solutions
Verge Network Solutions
In today’s digital era, staying connected means more than just making calls. Verge's Business VoIP Phone Systems transcend traditional boundaries by offering feature-rich systems with the flexibility to choose from On-Premises deployment, Verge Dedicated Private Cloud, or our Verge Business Cloud solution. Designed to adapt to your unique business needs and budget, our VoIP solutions not only promise a lower total cost of ownership but also bring the rich capabilities of state-of-the-art phone systems into the heart of your business operations. Verge's Unified Communication solutions offer a robust suite designed to streamline collaboration and drive productivity. By integrating voice, video, data, and mobile applications into a single, cohesive platform, we enable your team to connect and collaborate from anywhere, at any time. Our tailored solutions ensure that your business stays ahead, fostering innovation and enhancing customer engagement.
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