List of the Top 23 Business Phone Systems for Slack in 2026

Dialpad offers a modern business phone solution that transforms conventional desk phones into a versatile cloud-based system compatible with any device. With this platform, teams can enjoy high-quality voice calls, send SMS and MMS messages, and utilize sophisticated features such as call routing, voicemail transcription, and AI-driven insights, all integrated into a single cohesive system.

RingCentral RingEX is a robust cloud-based telephony solution designed to enhance your company's communication efficiency. With enterprise-level communication functionalities like voice, fax, and text, along with the flexibility of BYOD (bring your own device), it enables you to operate from virtually anywhere. The platform's essential features encompass automatic call recording, conferencing capabilities, and unlimited local and long-distance calls. Additionally, RingCentral RingEX offers personalization options, allowing you to tailor call management settings such as call forwarding, message alerts, and notifications for missed calls to fit your specific requirements. This adaptability makes it a versatile choice for a wide range of business environments.

CallTools offers a state-of-the-art Business Phone System tailored for adaptability, clarity, and comprehensive oversight. Whether your workforce operates remotely, in a traditional office, or in a hybrid environment, our entirely cloud-based solution equips you with all the necessary tools to streamline business communications in one unified platform. Effortlessly direct incoming calls using intelligent IVR systems and sophisticated queues, while your outbound teams can utilize smart dialing and caller ID tactics to enhance customer engagement. Our integrated features, including call recording, voicemail, and real-time monitoring, ensure both quality assurance and regulatory compliance. Furthermore, with an embedded CRM, comprehensive call logs, and customizable response options, overseeing customer interactions has never been easier. CallTools integrates flawlessly with your current technology infrastructure and adapts seamlessly as your team expands. With exceptional audio quality, dependable uptime, and support based in the U.S., this platform transcends a mere phone system—it serves as a productivity powerhouse designed for sales, service, and overall success. Enable your team to connect, close deals, and provide support—all from a robust, singular platform.

Adversus offers more than just a typical business telephone system; it is a comprehensive outbound calling platform that integrates workflow automation, performance monitoring, and compliance features. With a cloud-based interface, users can effortlessly make and oversee a large number of outbound calls without the need for physical equipment. The platform enables calling to over 150 countries and boasts an impressive uptime of over 99.97%. Additionally, it is ISO certified and adheres to SOC 2 standards. Tailored for sales-focused companies that require more than mere communication capabilities, Adversus provides an organized approach to outbound calling and complete transparency regarding representative performance.

Transform your surroundings into a functional workspace with 800.com, which enables you to oversee your business operations directly from your mobile device. This service comes without the need for a contract, providing advanced calling features and cell phone forwarding capabilities that enhance customer engagement, brand recognition, and response rates through SMS messaging. You can effortlessly manage extensions, send out professional greetings, and oversee your account conveniently online. 800.com supports various types of forwarding, including simultaneous and sequential ringing, ensuring you never miss a call. Utilizing toll-free numbers establishes a credible presence in the U.S. market, while local numbers can suggest a limited business scope. Each member of 800.com enjoys full access to all phone system tools, irrespective of their selected plan, making it easier to serve clients and reduce long-distance charges for both your customers and your business. By choosing 800.com, you position your company for success in a competitive environment.

KrispCall enables users to handle all their telecommunication requirements—be it personal, business, or corporate—through a single application available on Web, Android, and iOS platforms. From the convenience of your home, you can obtain international phone numbers. The platform simplifies the process of generating international numbers, including national, local, shortcode, and toll-free options, across more than 100 countries, regardless of how quickly you need them. You have the ability to efficiently oversee your call logs as well. With KrispCall's integrated phonebox, all your business calls, voicemails, and recorded conversations can be managed and monitored conveniently in one location. You can connect with your international clients using local numbers, which helps in building their trust. KrispCall provides affordable international numbers tailored for your business needs. Furthermore, our customizable widget allows for straightforward customer outreach, as clients can reach you effortlessly by clicking on the KrispCall widget embedded on their website, enhancing your overall accessibility. This seamless integration not only improves communication but also boosts your professional image.

The cloud phone solution is specifically built for the Zoom platform, offering a modern user interface paired with enterprise-grade features that enhance voice communication. The Zoom administrator portal facilitates user management and provisioning, along with monitoring call quality and usage metrics. With a globally distributed cloud infrastructure, Zoom ensures secure HD Voice with exceptional reliability suitable for enterprises. Users can seamlessly make and receive calls, share content, and engage in video meetings, while also having the ability to send chat messages through Zoom's desktop or mobile applications. Additionally, phone calls can be effortlessly upgraded to Zoom Meetings, eliminating the need for participants to disconnect or dial into a different conference bridge. Native applications for Windows, MacOS, and Android are designed for ease of use and optimize both voice and video quality. As the range of countries offering local phone numbers continues to expand, customers looking for simplified global telephony management can easily port their numbers to Zoom to streamline their communications. This comprehensive integration allows businesses to enhance collaboration and connectivity across various regions.

One Platform for All Business Calls Simplify and enhance your business communications with Zadarma. From internal calls to global customer service, everything runs in the cloud — secure, reliable, and fully customizable to your workflow. Highlights include: - Visual PBX constructor for intuitive setup - AI call agents and speech recognition tools - Automatic call distribution (ACD) and IVR setup - eSIM for global mobile connectivity - Full API access to automate and integrate with your systems - 24/7 support and detailed documentation Perfect for companies managing international communication, remote support, or multi-channel sales teams.

User.com serves as a comprehensive software solution for marketing automation, enabling effective communication with customers while managing relationships efficiently. This all-in-one platform is equipped with a wide array of features, offering powerful tools that cater to sales, marketing, and support needs. Various communication options—including email marketing, mobile push notifications, SMS messaging, and call center integration—ensure a seamless experience for every visitor. Additionally, you can track and analyze all your data in one centralized location, with the ability to customize the display to focus on the key metrics that matter most, facilitating prompt and informed decision-making. By consolidating these functionalities, User.com enhances your capability to engage with customers across multiple channels effectively. Are you prepared to experience these benefits firsthand? Sign up today for a free trial at User.com!

net2phone stands out as a prominent provider of Unified Communications, delivering cutting-edge and cost-effective cloud telephony services across the United States and globally. With over three decades of continuous innovation and a robust Voice over IP foundation, net2phone has rapidly emerged as one of the industry's most dynamic players. Their comprehensive cloud-based solutions in unified communications and contact center technology empower businesses worldwide to engage their customers more effectively through improved intelligence and insights. As they continue to expand their global reach, net2phone remains committed to enhancing the way companies connect with their audiences.

Yodel serves as an innovative receptionist for customer service departments, expertly handling inbound voice communications to pre-qualify calls. This system facilitates call management without the need to switch between different tools, ensuring a smooth experience. With a robust infrastructure built on proven technology, users can collaborate effectively on calls while benefiting from exceptional voice clarity. Within minutes, you can have your phone system operational without the hassle of transferring your existing business number. Yodel seamlessly integrates with more than 1000 software applications, allowing you to link your phone system to your workflows effortlessly. Additionally, it offers access to phone numbers in over 100 countries, ensuring you remain connected with your customers no matter their location. By partnering only with trustworthy local carriers, Yodel prioritizes outstanding call quality and reliability. Our service is designed to maintain high uptime and uphold a secure phone infrastructure. In today's competitive landscape, customer service teams are expected to deliver superior support and enhance customer satisfaction. Yodel eliminates the complexities associated with traditional phone systems, focusing instead on what truly matters: effective voice communication and customer engagement. Moreover, with its user-friendly interface and reliable features, Yodel empowers businesses to enhance their communication strategies and foster better relationships with their clientele.

CallHippo is an advanced contact center solution designed to facilitate connections with clients. Its user-friendly interface, combined with powerful features and comprehensive reporting, empowers sales and service teams to engage in effective conversations with customers seamlessly. Moreover, CallHippo integrates effortlessly with various platforms, enhancing overall productivity. With a global trust from over 5,000 businesses, it has established itself as a reliable choice in the market. This level of widespread adoption highlights its effectiveness and the value it brings to organizations seeking to improve customer interactions.

Aircall is redefining call center and customer communication software with an AI-driven platform that empowers teams to work smarter and connect better. Designed for both sales and support teams, it centralizes phone calls, SMS, and WhatsApp messaging, ensuring no customer interaction slips through the cracks. With AI Voice Agents, businesses can handle inbound calls 24/7, qualifying leads and addressing routine queries without missing a beat. The new AI Assist Pro takes conversations further by coaching reps in real time, guiding them with prompts, and automating follow-ups—turning every rep into a top performer. Teams also gain actionable insights with powerful analytics, call recordings, and performance dashboards to identify trends and improve outcomes. Aircall’s shared inbox keeps cross-channel communication organized, while IVR and automated call routing reduce resolution times. Businesses appreciate its fast, intuitive setup: claim numbers instantly, configure workflows in minutes, and connect seamlessly to Salesforce, HubSpot, Zendesk, Intercom, Shopify, Microsoft Teams, and 100+ integrations. Customers around the world—from travel agencies to healthcare recruiters—praise Aircall for its stability, reliability, and ease of use. With proven results like increased bookings, faster onboarding, and measurable boosts in customer satisfaction, Aircall demonstrates real business impact. By combining automation, AI, and human connection, it delivers a future-ready communication hub that helps companies scale without sacrificing quality.

Create a fully functioning contact center from scratch within a few hours by seamlessly integrating cloud capabilities with your existing on-premises infrastructure. Ozonetel enables a smooth transition from legacy systems to cloud solutions overnight, with our product specialists conducting a comprehensive evaluation of your requirements before proposing a customized solution that aligns with your organizational goals. Effectively merge and automate both digital and voice communication channels using industry-leading dialers to improve the handling of incoming leads and optimize outbound efforts. You can establish a complete call management system in 24 hours or even less, providing a wide range of inbound, outbound, and blended call center features. At Ozonetel, our secure cloud communication solutions not only enhance the customer experience but also lower overall operational costs for contact centers. As the pioneers of India's first cloud-based customer experience platform, we consistently set ourselves apart through exceptional customer support and continuous advancements in AI technology. Our dedication to maintaining high standards guarantees that we stay ahead in the industry, continually adapting to fulfill the evolving needs of our clients, ensuring their growth and success in a competitive market. By prioritizing innovation and customer satisfaction, we empower businesses to thrive in an ever-changing landscape.

Quo is redefining business phone systems by unifying calls, texts, and contacts into one AI-powered communications hub. Designed to streamline customer interactions, it offers Sona, an always-available AI receptionist that ensures no call goes unanswered. Sona can intelligently respond to inquiries, capture caller details, and transfer conversations, giving businesses peace of mind that every customer feels valued. The platform also organizes complete conversation histories across channels, making it easy for teams to stay aligned and provide consistent support. Lightweight CRM tools let businesses manage contacts with custom fields and notes, giving teams immediate access to critical context. Quo AI elevates workflows with automated call transcripts, smart tagging, summaries, and next-step recommendations to improve response times and productivity. Collaboration is enhanced with features like shared numbers, warm transfers, group calling, and private threads for internal discussions. Managers gain oversight through advanced analytics, call filtering, and activity tracking, ensuring performance accountability across teams. The system integrates with existing business tools and APIs, offering flexibility, automation, and scalability for growing companies. Rated #1 in customer satisfaction on G2 and trusted by thousands of businesses worldwide, Quo delivers the modern phone solution that balances reliability, intelligence, and teamwork.

Remote teams can effectively utilize cloud phone systems, and JustCall offers a versatile solution that functions seamlessly on any device, enabling sales and support teams to communicate from anywhere at any time. Users can swiftly acquire phone numbers across 70 different countries and initiate or receive calls within moments. In just a few minutes, you can establish your own cloud phone framework, making JustCall the quickest and most straightforward option for managing your telecommunication needs. Discover how companies leverage JustCall to streamline their phone communications, enhancing agents' abilities to boost sales and conversion rates. Eliminate the complications of manual dialing and data entry, potentially increasing your sales call volume and productivity by as much as 300%. Moreover, with features like IVR and Smart Call Routing, as well as Live Call Monitoring, you can ensure a smooth customer experience. The addition of SMS Bots allows you to provide clients with responsive support around the clock, while automated integrations can connect with various business tools and applications. Utilizing CRM systems, Helpdesk solutions, and other software automation tools, you can create efficient workflows that benefit both support and sales teams, ultimately leading to greater operational success. By implementing these advanced features, organizations can not only improve their internal processes but also enhance customer satisfaction significantly.

Designed for both large enterprises and emerging companies, the Yay.com business phone system presents a flexible and innovative communication platform that not only cuts costs but also enhances organizational adaptability. With user-friendly softphone applications compatible with your existing devices, remote and hybrid work becomes effortless and efficient. You can collaborate and communicate from anywhere in the world, allowing you to operate in a manner that suits your needs best. Yay excels in supporting distributed teams, whether they are in the office, at home, or on the move. Take advantage of a wide array of business functionalities, including CRM integrations, IVR call menus, call queuing, and much more. Start with a free trial today and discover how Yay.com can empower your business to flourish and succeed. Additionally, with its comprehensive tools and features, you can optimize your team's performance and improve customer interactions effectively.

dialnote is an AI-powered business phone system that helps growing companies capture every customer call, with unlimited users that scale faster than revenue. Choose a local, toll-free, or international VoIP phone number, or port your existing business phone number for free, and put your entire team on it for one flat monthly price. A built-in 24/7 AI receptionist answers FAQs, captures leads, takes messages, transfers urgent calls, and delivers instant summaries and transcripts in 15+ languages, so businesses stop losing customers to unanswered after-hours and overflow calls. Smart call routing, IVR menus, AI receptionist, shared inboxes, business-hours rules, and warm transfers keep customer conversations consistent across sales, support, and front-desk teams. Two-way CRM sync with Salesforce, HubSpot, and Zendesk auto-logs every interaction, so reps walk into every call with full context. Industry-ready workflows ship out of the box: 24/7 customer-support agents and order-status IVR for retail and e-commerce; appointment confirmations and reminders for clinics; lead-qualification calling for real estate and BFSI; booking and concierge flows for hospitality; and admissions response for education. Outbound automation covers cart-abandonment recovery, post-purchase follow-ups, and review collection. Unlimited US/Canada calling, zone-based international rates, automatic call recording, real-time call analytics, lead-capture reporting, APIs and webhooks for custom workflows, and native iOS/Android apps are included. Add contractors, seasonal staff, or entire departments without per-user cost increases. Plans start at $49/month with a 10-day free trial, no credit card required, a cost-effective alternative for SMBs and mid-market businesses replacing legacy VoIP with smarter, AI-powered customer communication.

Toky is a comprehensive Business Phone System designed to facilitate smooth communication between customers and employees alike. With just an internet connection, you can stay connected from virtually any location around the globe. The system provides virtual phone numbers, ensuring you are reachable no matter where you are. Additionally, it allows for seamless integration with your CRM and other business tools, enabling you to call customers with a single click while automatically recording all relevant details. Known for its reliability and cost-effectiveness, Toky offers a range of features, including call recordings, SMS, speech-to-text capabilities, and voicemail management, making it a versatile choice for businesses. This combination of features ensures that you can maintain effective communication and streamline your operations efficiently.

Boost your productivity by capturing an extra 40% of your time through automated time entries and post-call notes for every client interaction. Enhance your placement success and minimize potential disputes by ensuring that all conversations with candidates are automatically saved in your CRM and ATS. Improve compliance and reduce risks by recording your calls, which allows you to allocate more time to assist clients effectively. VXT offers flexible solutions designed for businesses that place a strong emphasis on customer satisfaction. With VXT voicemail, you can craft intelligent greetings tailored to each contact, which significantly improves their experience with personalized messages. This cloud-based voicemail system enables you to access your messages from any device, no matter where you are. Furthermore, you can record calls just like any other phone conversation, and these recordings can be conveniently transcribed into your notes for quick access. This flawless integration of features not only keeps you organized but also enhances your efficiency in all communications. By utilizing these advanced tools, you can ensure that your workflow remains smooth and your client interactions are always top-notch.

Voxloud emerges as Italy's first cloud-based phone system, integrating AI technology to boost productivity and conserve precious time. When you switch to Voxloud, you can keep your current landline number without incurring any extra charges. The activation process is incredibly straightforward, allowing you to establish your new landline number and phone system in a mere 59 seconds, which means you can begin professional communication right from day one. Transitioning from conventional phone systems to Voxloud signifies adopting a more intelligent working method with their cutting-edge cloud phone solution. This all-in-one telephone system is designed to cater to the communication needs of small and medium-sized enterprises. Improve the management of your incoming calls by implementing a customizable interactive voice response (IVR) system that offers various levels of interaction. Enjoy the ability to work flexibly from anywhere, at any time, using our intuitive apps and VoIP devices on your laptop, tablet, or smartphone. Adding users from diverse locations and modifying your phone system settings is easy and can be done with just a few clicks, ensuring it adapts to your business's changing needs. Additionally, enhance your phone interactions through the leading CRM integrations available, creating a well-rounded solution for all your communication requirements. Consequently, Voxloud empowers your team to collaborate efficiently, regardless of their physical locations, fostering a truly modern approach to communication. With Voxloud, businesses can expect both convenience and innovation, making it an ideal choice for the future of work.

RocketPhone is a holistic voice communication solution designed to enhance business interactions by seamlessly integrating with Salesforce CRM. This innovative platform includes functionalities such as real-time AI call assistance, automatic call transcription, and the automation of workflows, all aimed at creating more efficient operations and improving customer engagement. It supports various forms of communication, including voice, cellular, and video, allowing teams to unify their conversations across mobile devices, Salesforce, and web interfaces. With its sophisticated AI capabilities, RocketPhone is able to pinpoint key moments in conversations, providing in-call recommendations and automating tasks, which boosts both sales and customer service productivity. Its flexible pricing structure, which imposes no minimum annual commitments, enables businesses to scale as they grow while being accessible from any location with internet connectivity. The platform is particularly beneficial for sales and service teams as well as management, targeting higher deal closures, increased customer satisfaction, and improved operational efficiency through real-time analytics and AI-driven insights. Additionally, RocketPhone's intuitive interface ensures that users can navigate its features with ease and fully leverage its advantages, making it a valuable tool for any organization looking to streamline communication. Ultimately, RocketPhone equips teams with the tools necessary to thrive in a competitive business landscape.

Quicktalk is a streamlined call center solution tailored for small businesses, allowing entrepreneurs and startups to effortlessly set up phone support and manage customer interactions from any device. Users have the option to choose a new dedicated phone number or keep their current one while custom-configuring an auto-attendant that includes features like personalized greetings, business hours, call routing, and announcements, all backed by unlimited calling. Moreover, Quicktalk incorporates sophisticated call center features such as call recording, cascading calls, real-time monitoring, and detailed analytics, specifically designed for smaller enterprises. This innovative software not only boosts customer service but also significantly simplifies communication processes, making it an invaluable tool for growing businesses looking to enhance their operational efficiency. With its user-friendly interface and rich feature set, Quicktalk is committed to supporting small businesses in achieving their customer service goals.