List of the Top 25 Business VoIP Providers for Zoho CRM in 2025

3CX is a versatile, software-driven IP PBX built on open standards that delivers comprehensive Unified Communications straight out of the box. It caters to businesses of all sizes and across various sectors, offering a full suite of features that range from mobility and presence indicators to sophisticated call center functionalities, all at a significantly reduced cost. This platform is particularly well-suited for remote work environments, featuring mobile applications, video conferencing capabilities, and live chat integration for websites. Installation, management, and maintenance of the PBX are straightforward, allowing users to easily handle it themselves on their own hardware, a dedicated server, or via a cloud environment. Alternatively, users can opt for 3CX's hosting services to simplify their setup even further. With its user-friendly design and extensive feature set, 3CX empowers companies to enhance their communication strategies effectively.

Are you in the market for a modern phone system? CloudTalk.io presents an advanced cloud-based phone solution tailored for small and medium enterprises, startups, and online retailers. It is also compatible with both sales and customer service call centers, enhancing their operational efficiency. With over 25 integrations available for popular CRM, helpdesk, and e-commerce platforms such as Shopify, Salesforce, and Pipedrive, you can easily connect your existing tools. Additionally, our dedicated 5-star customer success team is committed to ensuring a smooth transition, whether you’re migrating from another system or establishing a new cloud call center from the ground up. Our rapid growth is evident, as we have formed successful collaborations with more than 1,000 companies globally, including renowned names like DHL, Yves Rocher, and Karcher. Plus, you can try CloudTalk risk-free with a 14-day trial that doesn't require any credit card information, allowing you to explore its features without commitment. Experience the benefits of an innovative communication system today!

Ultatel is at the leading edge of business communication solutions, equipping companies with state-of-the-art cloud VoIP technology designed to enhance efficiency and maintain seamless connections with clients at any time and from anywhere. Our plans are fully adaptable, offering unlimited HD Voice, SMS, Fax, Chat, Video, and access to more than 40 advanced features and integrations. With our transparent pricing model—no hidden costs—what you see is exactly what you pay. As a recognized leader in the Gartner Category and a G2 High Performer, Ultatel provides a unified communications platform that grows alongside your organization. Thanks to our innovative FlexScale technology, you can easily modify your communication requirements without experiencing downtime or incurring penalties. Our award-winning customer support team is available 24/7/365, achieving an impressive 94% first-contact resolution rate. With Ultatel, you can enjoy the assurance of limitless connectivity and support.

Communication channels like voice, text, video, fax, and conferencing are essential in today's business landscape. Phone.com provides a contemporary, adaptable solution that caters to the needs of mobile entrepreneurs and expanding companies alike. With its comprehensive suite of advanced business phone functionalities, Phone.com empowers your evolving business to engage with customers in a professional and efficient manner. Enhanced call handling capabilities help to elevate your brand's reputation, while mobility features ensure that you maintain connectivity with clients, coworkers, and partners at any time and from any location. This versatility is crucial for thriving in a fast-paced business environment.

Intulse is a provider of business VoIP solutions that offers hosted and cloud-based UCaaS services tailored for companies in the United States. Our managed VoIP phone systems prioritize mobility, speed, flexibility, and additional features to meet diverse business needs. Founded in 2015, Intulse aims to aid businesses trapped in outdated communication frameworks that are inefficient yet costly. The Intulse UCaaS (Unified Communication as a Service) platform enhances productivity through the Intulse App, which includes a VoIP softphone, SMS capabilities, messaging features, CRM integrations (such as Salesforce and HubSpot), softphones, time-based routing, virtual receptionists, personalized greetings (including AI-generated options), unlimited extensions, and much more. By choosing Intulse as their cloud VoIP provider, customers gain access to a highly customizable and feature-rich system that aligns with their operational strategies. Our communications specialists collaborate closely with clients to identify and implement the most suitable features, ensuring they maximize the benefits of their system and service. Additionally, Intulse prides itself on providing 24/7 support that is entirely US-based, setting a standard in the industry with our commitment to answering the phone whenever you reach out for assistance. This level of dedication ensures that businesses can rely on us for prompt and effective support at any time.

Revolutionize your contact center operations with CallTools, a cutting-edge cloud-based solution that seamlessly integrates both inbound and outbound dialing to maximize productivity. Boost agent efficiency while building stronger connections with customers through powerful features such as predictive dialing, call recording, and coordinated multi-channel campaigns via email and SMS. Obtain a comprehensive view of team performance with in-depth analytics and real-time reporting capabilities. With adaptable integrations, efficient queue management, and personalized IVR settings, CallTools streamlines processes and enhances call results. Improve your connection rates by utilizing sophisticated data targeting and dynamic caller ID technologies. Designed for simplicity, CallTools equips teams to tackle even the most challenging tasks effortlessly, ensuring a smoother workflow across the board. This innovative platform not only enhances operational efficiency but also fosters a more responsive and customer-centric approach in your contact center.

Kixie: Intelligent Calling and Texting Solutions for Revenue Teams Kixie serves as an AI-driven sales engagement platform designed to enable teams to connect more swiftly, secure additional deals, and grow seamlessly—all while maintaining a personal touch. 🔥 Outbound Sales: Elevate connection rates by as much as 400% through AI-enhanced Local Presence, Multi-Line PowerDialer, and Spam Risk Prevention. 🚀 Marketing: Streamline calls and texts for immediate follow-ups and impactful outreach—all without the hassle of manual processes. 📞 Inbound Sales & Customer Service: Manage a higher volume of calls with intelligent CRM-based routing, shared SMS inboxes, and instant auto-responses. 📊 Revenue Operations & Leadership: Access AI-generated insights, real-time coaching resources, and sophisticated analytics to enhance your team's performance. 💥 Transform your sales force today! Explore our website to begin your journey for free, with no credit card necessary, and discover the difference Kixie can make.

UniTalk provides an extensive array of services within the telecommunications sector, encompassing offerings such as IP telephony, virtual PBX systems, and call tracking solutions. Additionally, they offer features like callback buttons and interactive widgets to enhance user experience. These tools are designed to streamline communication and improve customer engagement.

A Hosted Business Phone System PBX can elevate any organization’s image and operational capabilities to that of a Fortune 500 company. With an auto-attendant in place, incoming calls can be efficiently managed, allowing customers to reach the right person by dialing names, selecting extensions, or choosing departments. Additionally, if you're frequently on the go, your calls can be seamlessly forwarded to your mobile device. T-Max provides complete geo-redundancy, with servers strategically located in premier data centers throughout the United States. We utilize multiple carriers to guarantee optimal connectivity to the PSTN, ensuring that your communication remains uninterrupted. T-Max also offers a selection of high-quality desk phones from renowned manufacturers like Yealink and Polycom, with various models available to perfectly fit your workspace. Our offerings extend to a wide range of devices including reception consoles, agent phones, wireless options, and conference room phones. Discover the best value in Hosted Business Phone Systems available today. Call us at 1-888-245-34883 for more information about our services, which include departments, extensions, digital receptionists, voice prompts, voicemail, fax service, and much more. Our comprehensive solutions are designed to meet the unique needs of your business, ensuring that you stay connected and efficient.

A dynamic platform and specialized applications designed specifically for MSPs and UCaaS Providers. Transform your business with modern communication and telephony systems that improve customer interactions while minimizing upfront investments. Widely adopted by numerous international clients, UCaaS providers, and resellers, Thirdlane stands out as the go-to solution for those aiming to gain a competitive edge. Whether serving enterprises of various sizes, governmental organizations, or call centers, Thirdlane's dependable and intuitive multichannel communication solutions enhance productivity, foster customer engagement, drive sales, and improve cost-effectiveness. Explore how Thirdlane can strengthen your organization by requesting a quote today. Additionally, alongside the telephony features offered by the Thirdlane Multi Tenant PBX or Thirdlane Business Phone System, customers also enjoy access to the Thirdlane Connect application (available on both desktop and mobile), which encompasses chat, voice and video calls, conferencing, screen sharing, and seamless integration with CRM systems and various applications, providing a comprehensive communication experience. This robust array of features is designed to meet the evolving needs of today's businesses.

Zadarma provides a business phone solution that eliminates the need for extensive wiring or complex hardware setups. Their services include VoIP, Cloud PBX, CRM functionalities, and website widgets, along with seamless integration with leading CRM platforms. Additionally, virtual phone numbers can be obtained in 100 different countries worldwide, starting at just $2 each month, making it an affordable option for businesses of all sizes. This flexibility allows companies to streamline their communication processes while maintaining a global presence.

PBXware stands out as the original and most prominent IP PBX Professional Open Standards Turnkey Telephony Platform available today. Since its inception in 2004, PBXware has been delivering adaptable, dependable, and scalable Next Generation Communication Systems (NGCS) alongside VoIP solutions tailored for small and medium-sized businesses (SMBs), large enterprises, Internet Telephony Service Providers (ITSPs), call centers, and various governmental agencies across the globe. This achievement is realized by integrating the finest elements of cutting-edge technologies. The Bicom Systems softswitch is offered in several editions, including Business, Call Center, and Multi-Tenant, with each edition designed to support specific features that enhance performance, reliability, and expandability, ensuring users get the most out of their systems. This versatility makes PBXware a preferred choice for organizations seeking robust telephony solutions.

GoTo Connect enhances your business's professional image significantly. As a comprehensive, cloud-based business telephone system, GoTo Connect supports countless organizations across diverse sectors and sizes in elevating their communication methods and attaining enhanced success. The Hosted VoIP service from GoTo Connect offers an extensive array of functionalities that can effectively substitute traditional landline phones, including unlimited voicemail options and automated attendants, making it a versatile choice for modern businesses. With its robust features, GoTo Connect not only streamlines communication but also fosters collaboration within teams, ultimately driving productivity and growth.

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.

Our cloud-based PBX solution offers phone numbers to facilitate your business expansion and can seamlessly integrate with your current phone or SIP device. Through our PBX portal, you can develop intricate calling strategies while enjoying a wealth of additional features—all without any contractual obligations. By switching to our service, you can achieve savings of up to 70% compared to your current provider. We tailor recommendations to fit your specific needs, and our VoIP services are crafted for businesses that desire a straightforward, dependable, and scalable solution promptly. Our advanced Telephony APIs enable you to augment the functionalities of your existing products, with both SIP Trunking and Hosted PBX supporting API calls, making integration simple and efficient. Additionally, we have a dedicated support team available around the clock, ready to assist you via phone or live chat on our website (https://vndpbx.com). For inquiries, you can reach us in New Zealand at 0 9 8896552 (Auckland) and in the U.S.A. at +1 929 489552 (New York), ensuring that help is always just a call away.

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 serves as the preferred cloud phone solution for contemporary brands with teams of three or more users. It offers smooth integration with leading CRM and Helpdesk platforms, facilitating effective communication for sales and support teams. Administrators have the ability to effortlessly add phone numbers from over 100 countries, adjust team size based on seasonal needs, and obtain comprehensive insights through real-time analytics. Trusted by over 3,000 companies globally, Aircall can be accessed through both desktop and mobile applications. Experience the benefits first-hand by initiating a risk-free trial today and discover how it can enhance your business communications!

The *astTECS IPPBX system serves as the perfect solution for businesses of all sizes, ensuring a comprehensive set of high-end features at a reasonable cost while holding TEC certification from the Government of India. This innovative PBX solution empowers organizations to be adaptable, forward-thinking, and competitive, all while streamlining telecom costs. Additionally, the *astTECS Call Center Dialer stands out as an omnichannel contact center solution, featuring a sophisticated real-time dashboard to monitor agents effectively. With the incorporation of advanced analytics and AI-driven capabilities, this dialer significantly enhances both agent productivity and customer interactions. Furthermore, *astTECS offers a robust call recording solution tailored for your business needs, with an intuitive voice recorder that boasts a range of advanced functionalities. Seamless integration with various PBX systems is a key benefit, as it supports ISDN/PRI, IP, analog lines, and mobile networks, ensuring comprehensive recording of all incoming and outgoing calls. This all-in-one solution not only optimizes communication but also facilitates better decision-making through detailed call insights.

Simplii's click-to-call feature enables a smooth shift from browsing the web to making phone calls with just one click. When this feature is in use, any phone number shown in your Chrome browser becomes instantly clickable. Moreover, our Fusion extension guarantees that incoming calls will show up on any active tab in your Chrome browser. With the Screen Pops functionality, you can easily answer or decline calls, send text replies, and manage call transfers or holds directly from your screen. Additionally, you have the option to record notes and contact information within the Screen Pop, which will be automatically saved to your contacts. When you integrate this with a Simplii CRM, all important data such as call history, recordings, SMS conversations, call outcomes, and notes are logged in real-time, ensuring seamless synchronization with your CRM. By simply linking your CRM account to Fusion, you can watch as the logs are updated automatically, significantly improving your workflow and communication effectiveness. This integration not only simplifies your calling experience but also guarantees that every interaction is thoroughly documented, making it easier to refer back to past communications and maintain a detailed record of your engagements. As a result, users can optimize their productivity and enhance their overall customer service experience.

VoIPstudio presents a top-tier VoIP phone solution priced for everyday consumers, ensuring the high standards of quality and security that businesses expect. It combines a wealth of innovative features and functionality with flexibility, scalability, and an exceptional user experience, all supported by a dedicated customer service team that operates across multiple channels. Tailored for a global audience, VoIPstudio is designed to function seamlessly across multiple sites and countries, utilizing cloud-based distributed hosting to offer the responsiveness and dependability essential for enterprise clients. This makes it an ideal choice not only for individual users but also for organizations with extensive extension needs, including various sectors such as media, call centers, software development, and meteorology. Customers benefit from the solution's adjustable capacity, which allows for easy addition or removal of users, ensuring they only pay for what they utilize without incurring costs for unnecessary capacity. Moreover, the platform is built to accommodate sudden increases in traffic, making it a robust option for businesses of all sizes. VoIPstudio’s offerings include over 40 advanced features and services available in every plan, such as number portability, call recording, conference calls, internet failover protection, interactive voice responses, call parking, video calls, video conferencing, and many more, enhancing communication possibilities for all users. This comprehensive feature set positions VoIPstudio as a leader in the VoIP market, catering to diverse communication needs effectively.

AVOXI Genius offers an affordable and user-friendly cloud-based call center software solution. With this web-based contact center, you can effortlessly oversee your business communications. The software seamlessly integrates voice services with your contact center operations. You can also activate virtual phone numbers in over 170 countries. AVOXI Genius is recognized as the top-selling solution globally, with pricing plans beginning at just $19.99 per user. For a limited time, you can take advantage of an offer that includes two months of complimentary service. This makes it an excellent option for businesses looking to enhance their communication capabilities without breaking the bank.

NUACOM operates as a Telecom and Software-as-a-Service provider, offering adaptable and scalable calling solutions that empower businesses to enhance customer service and excel in sales engagements. Effective sales and customer service are vital for any organization, making a robust communication platform essential for achieving business success. Our calling platform prioritizes user experience, call analytics, and automation, allowing you to concentrate on what truly matters: increasing your sales and ensuring customer satisfaction. By leveraging our solutions, organizations can foster stronger relationships with their clients and streamline their communication strategies.

Monster VoIP was established to offer outstanding voice clarity and ensure maximum uptime for clients across the United States, including major cities like Los Angeles, New York, Washington, D.C., Houston, Dallas, and Chicago. In addition to this commitment, the company prioritizes exceptional customer service and user satisfaction. To achieve geo-redundancy, we have strategically located data centers in Las Vegas, New York, Dallas, Minnesota, and Chicago, with all endpoints registered at each site. This approach guarantees that clients can rely on superior voice quality and reliable business phone uptime from multiple facilities. We have also developed a comprehensive suite of communication tools, allowing teams to familiarize themselves with just one user interface to meet all their communication demands. To uphold our promise of customer satisfaction, we provide tailored setups and continuous support available 24/7/365 for every business VoIP client that engages with us. Our dedication to service excellence is the cornerstone of our operations, ensuring that each customer feels valued and well-supported throughout their journey with us.

Revolutionize your communication strategy, turning it from a cost liability into a valuable asset. With GigTel, your team can seamlessly connect through a cutting-edge, cloud-based communication platform designed to enhance your business in a remote work setting. By facilitating real-time communication from any location at any time, you can streamline your sales processes effectively. Enhance the customer experience by reaching out through chat, text, voice, or video with ease and speed. The real-time data analytics feature empowers you to refine sales tactics and customer interactions promptly, enabling you to make more effective business decisions. Many organizations face unnecessary challenges arising from communication hurdles such as missed calls, outdated system maintenance, and unreliable connections. We are here to provide a solution. Transform your business with our user-friendly, adaptable, and cost-effective hosted platform that consolidates communication efforts and boosts overall company performance. With us, you can effortlessly unlock the potential benefits that await your organization. Embrace change and see the difference it can make.

VoIP Office stands out as a frontrunner in cloud communication services, enabling effortless connections to individuals globally. Our versatile communication solutions cater to businesses of all sizes across various sectors. As a provider of cloud-based communications, VoIP Office delivers all the functionalities of a conventional PBX while leveraging cutting-edge VoIP technology. Additionally, VoIP Office integrates smoothly with your existing business applications, creating a cohesive system that unifies both your desktop and workplace environments. This innovative approach not only enhances productivity but also streamlines communication processes.