Best On-Premises Business VoIP Providers
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Compare the Top On-Premises Business VoIP Providers as of January 2026
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What are On-Premises Business VoIP Providers?
Business VoIP providers are companies that offer Voice over Internet Protocol (VoIP) phone systems for businesses. These systems allow businesses to make and receive phone calls over the Internet, reducing monthly phone bills and providing additional features such as voicemail, automated attendants, and call forwarding. VoIP providers typically offer a variety of plans, making it easy for businesses to find a cost-effective solution that meets their needs. Compare and read user reviews of the best On-Premises Business VoIP providers currently available using the table below. This list is updated regularly.
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1
Yeastar P-Series PBX System
Yeastar
Focusing on delivering "Easy-first Unified Communications", Yeastar P-Series Phone System offers companies of all sizes with a complete package for calls, video, messaging, and integrations, out of the box. -
2
NXTPulse
NXTPulse
NXTPulse offers cutting-edge innovations that can elevate your business operations significantly. The platform is packed with a variety of features, including seamless integrations with Microsoft Teams, which enhance its functionality. With its extensive capabilities, NXTPulse empowers you to work flexibly from any location at any time. It is compatible with leading platforms such as Office 365 and numerous popular CRMs. You can rely on NXTPulse to manage your hosted voice solutions, freeing you from that responsibility. Regular updates and new features ensure that the platform remains current and effective. Strong SSL security safeguards the connections. 3cx Integrations - M365, Microsoft Teams, Microsoft Dynamics, Google Workspace, Hubspot, Sales force, Connectwise, Freshdesk, Freshsales, Freshworks, Zoho, Zendesk, Pipedrive and much more Self-Managed or Fully Managed options to fit your needs All inclusive licenses and SIP Trunk included No per Minute or per number cost.Starting Price: $79.99 per month -
3
TecWerks
TecWerks
We have the ideal VoIP solution for those looking to simplify their office and mobile communications. TecWerks is different from other telecom providers. We offer options that scale from the smallest of companies, to large multi-site national companies, without the sticker shock. With our telecom plans, you will save BIG TIME on your phone services. There are no hidden costs. Do you need to leave the office from time to time? Our VoIP phone systems are mobile friendly. Never miss that important call when you cannot be there. Take the office with you, without advertising your cell phone number. Do you have remote office workers, or field staff? No problem. We have the solutions that will fit your needs. We customize telecom packages to fit the needs of your business. Our VoIP (voice over IP) systems lowers costs, increases accessibility and scale for your business that is completely portable. From basic to advanced cloud-based voice over IP solutions – we’ve got you covered.Starting Price: $125 -
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
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 -
6
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. -
7
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 -
8
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 -
9
My Country Mobile
My Country Mobile
AI-powered phone system with built-in contact center, predictive dialers global numbers – loved by retail & e-commerce teams. The modern cloud phone system built for retail, e-commerce, and growing teams. Get unlimited calling, local/toll-free numbers in 90+ countries, AI receptionist (24/7 auto-answer & lead qualification), predictive/progressive/preview dialers, shared team inbox, SMS marketing, WhatsApp, live chat, call recording, AI transcription, and 100+ CRM integrations (HubSpot, Salesforce, Shopify, Zoho, Zapier & more). Perfect for stores, support teams, sales outreach, and multi-location businesses. No contracts, pay-as-you-grow pricing Instant setup, port your number for free Trusted by 17,500+ companies worldwide 24/7 human supportStarting Price: $9.99/user/month -
10
Voicemaxx CE
Intrado
An enterprise-grade cloud-based calling solution fully hosted and managed by Intrado, with the added benefit of team collaboration, which includes: messaging, meeting, and mobility solutions and the features and benefits of Cisco Webex devices. VoiceMaxx CE includes Cisco Hosted Collaboration Solution (HCS), a cloud service that builds upon Cisco’s tried and true on-premises Call Manager offering, making it an ideal service for medium to large organizations switching from a premise-based service or those with Cisco infrastructure already in place. This solution is fully supported by Intrado with geo-redundant data centers—providing enhanced business continuity and disaster recovery—and 24/7 monitoring and support from Cisco-certified engineers.Starting Price: $25.00/month/user -
11
Zoiper
Zoiper
Stop eavesdropping on your calls, encrypt your VoIP calls! Don't like it when people eavesdrop on your conversations? Neither do we, that's why we offer free encryption for all your text, voice and video communications with TLS/SRTP and ZRTP. Our VoIP softphone will look everywhere for your contacts and will display them in a combined list for easy access. Outlook, windows/mac, LDAP, XMPP, XCAP, Android, iOS. You name it, we got it and we will lookup incoming calls as well so you know who calls before you answer. Zoiper runs on a multitude of different platforms. No matter if you are using macOS, Linux or Windows. iOS, Android or a browser, we’ve got a solution for all (and we are working hard on addition even more). Ignore the buzzword above, it just means we do Audio, Video, Fax, Presence and Instant Messaging. All from one intuitive interface.Starting Price: $4.99/one-time -
12
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 -
13
Ajoxi
Ajoxi
Ajoxi is a leading provider of wholesale VoIP termination services, dedicated to delivering exceptional connectivity and reliability. Utilizing state-of-the-art equipment and advanced routing technologies, Ajoxi ensures that every call is of the highest quality. Their commitment to excellence is backed by a team of experienced technicians who monitor the network around the clock, 24/7. This proactive approach allows them to swiftly identify and resolve any potential issues, minimizing downtime and ensuring seamless communication for their clients. Whether it's for high-volume call centers or international communication needs, Ajoxi's robust infrastructure is designed to handle the demands of today's fast-paced digital world. Their focus on quality, reliability, and customer satisfaction makes them a trusted partner in the VoIP industry. With Ajoxi, you can expect nothing less than top-tier service and consistent performance that supports your business communication needs.Starting Price: $ 3.00 -
14
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 -
15
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 -
16
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 -
17
Diabolocom
Diabolocom
For 20+ years, Diabolocom has redefined customer engagement. Our cloud-based Contact Center as a Service (CCaaS), powered by our proprietary generative AI, provides the smart automation, reachability, and insights today’s customer service and sales teams need. From real-time transcription and satisfaction analysis to next-best-action recommendations, our AI Assistant seamlessly supports each customer interaction for faster resolutions. Diabolocom combines native AI for CX with telecom services to deliver a unique, hyper-customized telephony experience. By automating routine tasks, your teams focus on what truly matters—driving customer loyalty and growth. We integrate smoothly with CRMs like Salesforce, Oracle, and Microsoft, giving teams full visibility to fuel business growth. Industry leaders like Mitsubishi Electric, Nikon, and Brinks trust Diabolocom for customer experiences that stand out. -
18
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. -
19
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 -
20
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 -
21
Pulse
Pulse Telesystems Private Limited
Pulse is recognized as a leading provider of call center solutions that effectively utilize Web Real-Time communication to enhance the efficiency of call center operations. With nearly two decades of experience, Pulse has successfully assisted clients across Pan India, Northern America, and Europe in establishing seamless customer interactions at every touchpoint. By optimizing the customer journey and maximizing revenue and loyalty, Pulse enables businesses to meet their customers' requirements through personalized call center solutions equipped with advanced features. These features promote proactive customer engagement and deliver exceptional user experiences.Starting Price: $14.51 -
22
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 -
23
Vodia PBX
Vodia Networks
Vodia Networks offers a SIP PBX platform that runs smoothly across cloud, on-premise, and hybrid setups. Our PBX supports a broad range of devices, including SIP phones, softphones, and WebRTC clients, to help businesses communicate flexibly across locations. Our Session Border Controller (SBC) has been certified by Microsoft for Microsoft Teams, and our PBX features AI-powered real-time call transcription using OpenAI’s Whisper technology. Vodia supports easy deployment through prepaid cloud PBX instances and traditional installations across various environments. Our phone system integrates with some of the world’s best business software, including ActiveCampaign, CallSmart, Cliniko, HighLevel, Microsoft Dynamics 365, monday.com, Shiji PMS, UPilot, and other industry-standard business communications platforms, so our customers can deploy cutting-edge business tools alongside our best-in-class, feature-rich cloud phone system. -
24
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. -
25
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. -
26
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. -
27
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. -
28
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 -
29
Pulsar360
Pulsar360
Now your customers can truly work from anywhere with a feature-rich mobility solution with the mission-critical features they need. We enable you to save money with built-in redundancy and instant provisioning of SIP trunks, DIDs, and toll-free lines. Pulsar360 Corporation's Voice over IP (VoIP) solutions provide high-quality voice communications, which can be delivered over affordable broadband service from other providers and/or Pulsar360-managed carrier services. Customers save money and increase productivity by streamlining their communications into a single network connection for phone service and high-speed Internet. Having invested more than ten years in perfecting our VoIP platform, we have created one of the most sophisticated, highly-automated systems in North America. With this innovation, we can offer instant provisioning of SIP trunks, hosted and hybrid VoIP PBXs, local and international DIDs, toll-free numbers, as well as advanced management capabilities. -
30
VaxVoIP
VaxSoft
VaxVoIP SIP Server SDK enables developers to build secure, SIP-based VoIP solutions such as IP-PBX, IVR, auto-dialers, smart agents, call centers, and calling card systems. Fully compatible with the SIP protocol, it supports softphones, hardphones, ATA devices, and other SIP hardware. It includes PBX features like call queues, call forwarding, call recording, voicemail, and call routing. With advanced security features, it protects against SIP floods, scans, and brute-force attacks. The SDK also offers real-time access to audio PCM data, enabling integration of AI, machine learning, and smart agents into VoIP systems for intelligent and enhanced communication.
