Best Business VoIP Apps for iPhone

3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry 3CX can accommodate every need; from mobility and status to advanced contact center features and more, at a fraction of the cost. Ideal for companies working remotely, 3CX includes mobile apps, video conferencing and website live chat. Installation, management and maintenance of the PBX is so easy that you can effortlessly manage it yourself, whether on an appliance or server at your premise on Windows, Linux or in the cloud. Alternatively you can choose to have it hosted by 3CX for a completely hassle-free solution.

RingCentral RingEX is a powerful cloud-based phone system that helps optimize your business communications. Providing enterprise-grade business communication tools for voice, fax, text, and video as well as bring your own device to work (BYOD) capability, RingCentral RingEX enables you to work where you want and how you want. Core features of RingCentral RingEX include auto-recording, conferencing, and unlimited long-distance and local calling. RingCentral RingEX's call management features can also be customized by configuring call forwarding, answering rules, message alerts, and missed-call notifications.

MightyCall is a flexible & scalable cloud-based call center solution designed specifically
for small & mid-sized businesses. Set up - Enjoy the simple setup process with our intuitive flowchart. Communicate - Manage the flow of both incoming and
outbound calls and increase your team’s
productivity. Collaborate - Track performance and route calls to your team members based on their roles and knowledge. Reach out - Reach more targeted contacts with the auto dialer and improve engagement rates. Supervise - Train and supervise agents in real-time
and obtain precise performance data. Experience our top-rated customer support and free live onboarding sessions designed to maximize your system's potential in the shortest amount of time.

Kixie is a revenue engagement platform that helps teams connect faster, sell smarter, and scale efficiently with AI-driven automation and seamless CRM integration. ✔️ Outbound Sales: Increase connection rates by up to 400% with AI-powered Local Presence Dialing, Multi-Line PowerDialer, and Spam Risk Reduction. ✔️ Marketing: Automate calls and texts for instant follow-ups and personalized, scalable outreach. ✔️ Inbound Sales & CS: Streamline workflows with CRM-based call routing, shared SMS inboxes, and automated responses. ✔️ RevOps & Leadership: Optimize team performance with AI-powered call insights, live coaching, and real-time analytics. 🚀 Boost productivity and revenue with Kixie. Visit our website to get started for free today, no credit card required!

Searching for a smart call centre software? Try CloudTalk.io, a new-generation cloud phone system for SMEs, startups, online stores or call centers (sales and customer service teams). 25+ integrations with favorite CRM, helpdesk or e-commerce tools as Shopify, Salesforce, Pipedrive, Intercom at hand along with a 5-star rated customer success team make it easy to seamlessly migrate or set up your new cloud call centre from scratch. We are rapidly growing every month and we have already successful cooperation with 1000+ companies across the world like DHL, Yves Rocher or Karcher. Try 14 day FREE trial from CloudTalk (no credit card details required).

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.

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.

Genesys Cloud CX is a comprehensive, cloud-based contact center solution designed to deliver exceptional customer experiences across various communication channels. Built with scalability and flexibility in mind, it integrates voice, chat, email, social media, and messaging platforms into a unified interface. The platform leverages advanced AI and analytics to provide real-time insights, automate routine tasks, and personalize interactions, ensuring efficient and effective customer engagement. With its robust workforce management tools, businesses can optimize staffing and performance while maintaining high service standards. Genesys Cloud CX is designed for seamless deployment and adaptability, making it an ideal solution for organizations of all sizes looking to enhance their customer service capabilities.

CallHippo is a modern Contact Center Tool that helps you connect with your customers. CallHippo is easy-to-use while offering robust functionality with advanced features, extensive reporting, and seamless integrations to empower sales and service teams to have effective conversations with customers. Providing World-Class support 24*7 and Accessible by desktop and mobile-app, CallHippo is trusted by over 5000 companies worldwide.

Aircall is an AI-powered customer communications and intelligence platform that unifies phone, messaging, and call center operations. Designed for sales and support teams, it enhances every interaction with features like AI Voice Agents, real-time conversation coaching, and integrated WhatsApp messaging. With powerful analytics, call recording, and shared inboxes, teams gain clarity and can resolve customer issues faster. The platform is easy to set up, offering quick number claiming, seamless integrations, and customizable workflows. Trusted by over 21,000 companies worldwide, Aircall helps businesses improve connection rates, boost CSAT scores, and streamline onboarding. By combining automation with human-first AI, Aircall reduces busywork so teams can focus on building better customer relationships.

Freshcaller is a simple and reliable cloud-based contact center software that helps businesses connect with customers in an affordable way. With phone numbers in 90+ countries, Freshcaller lets customers set up their contact center in a few easy steps, and with zero phone hardware. Freshcaller integrates with several CRM and Helpdesk tools, enabling sales and support teams to work seamlessly. With powerful reporting and analytics, admins can get real-time insights into their customer experience as well as agent productivity. Agents can take calls on their desktops, laptops, or phone (both Android and iOS), to create a fully remote but connected contact center. Admins can add agent licenses, purchase additional numbers, add phone credits, and upgrade the pricing plan. Freshcaller is a truly modern and reliable phone system that is trusted by over 7000+ customers worldwide.

UJET is a cloud-native, mobile-focused customer support platform helping organizations make support an integral part of their business by engaging with customers across all endpoints and channels. We are transforming customer interactions through integrated channels and integrated communications, modernizing the customer experience. Our tools offer a multichannel solution for voice, web, text and mobile app support. Customer support must be seamless for the consumer, must empower agents with the best tools to solve problems and must enable brands to present the best support experience possible. Companies like Google Nest, Instacart, Postmates, and GBM trust UJET to power their customer support programs, enabling reliability, security and scaling across the globe.

NUACOM is a Software-as-a-Service and Telecom company that provides flexible and scalable calling solutions for businesses to deliver exceptional customer service and handle successful sales calls. Sales and customer service are important departments for any organization and having a powerful communication platform is crucial for business success. Our calling platform is focused on the user experience, call analytics and automation, so you can focus on what matters most: close more deals and delight your customers. Deliver exceptional customer service and handle successful sales calls through the power of our VoIP solution for SMEs or our versatile call center software. Collect information from inbound calls and set up automation workflows to streamline the support process. Track every call query, review call logs, and view which agents are interacting with which customers. Look up all information about your callers with a click.

Channels (formerly CrazyCall) is an easy to use and affordable cloud-based call center application which allows to make and take calls directly from the browser, without the need of installing any software. Pick local numbers from over 75 countries around the world and start calling your leads and clients. It helps to manage and organize sales and customer service, reduces costs and automates the workflow. Channels connects to the platforms of your choice. Thanks to it you can get straight to the conversation with your customers instead of asking them dozens of questions. Have shorter and more meaningful calls and turn your clients into friends. Send and receive text messages and make your communication even more diverse. Reach those who prefer text over the phone and keep your customers engaged with two-way text messages.

Do you want a business phone service that works without costing a fortune in setup or monthly fees? Wouldn't it be nice to focus on your customers instead of spending hours on hold with your provider every time you want to make a small change? Welcome to FluentStream! We're committed to being the easiest business communication system to do business with. We offer no-contract plans with 24/7 client success for every account. Not only will we hold your hand throughout the entire onboarding process, but we'll do everything on your behalf (including the hassle of calling your internet provider). We know how complicated phone setup can be, and we're more than happy to do the heavy lifting so you don't have to. It's all part of being the easiest business to do business with.

Toky is a full-featured Business Phone System that allows your customers and team to communicate efficiently, you just need a good internet connection. With virtual phone numbers from around the world, make yourself available no matter where your company is located. Integrate your CRM and business tools seamlessly, so you can call your customers with a single click and automatically log the details of every call. Take advantage of features such as call recordings, voicemails, SMS, Speech to text, with affordable rates and proven reliability.

CloudCall is the only communications software dedicated to businesses who use CRMs. By capturing all calls and communications, and saving them into the CRM contact records, CloudCall helps businesses make more insightful decisions, stay in control of teams working from anywhere, and get more done faster. Let data drive your business Capture data from your communications, surface key insights, and automate key workflows. Saving time, increasing efficiency and profits. Get more control Keep everything in your CRM and see how your teams are doing from anywhere. Boost productivity and profits Make more placements, close more deals, get more done faster, with Click-to-call, Power Dialler and Automated workflows.

Nextiva is an AI-powered Unified Customer Experience Management (Unified-CXM) platform that helps businesses acquire, retain, and grow customers through seamless, personalized interactions. It unifies voice, chat, messaging, social, email, video, and reviews into one platform, eliminating silos and improving collaboration across teams. With patented customer journey orchestration, companies gain real-time insights and automate workflows that improve customer retention while lowering costs. Built-in AI and automation simplify self-service, optimize agent productivity, and deliver measurable efficiency. Nextiva’s workforce engagement tools reduce attrition, boost performance, and connect front-line employees with back-office teams. Trusted by thousands of innovative companies worldwide, and recognized as a Strong Performer in Gartner’s 2025 “Voice of the Customer” CCaaS report, Nextiva is redefining how businesses deliver meaningful customer experiences.

We supply you with geographic telephone lines in the area where your business is located. If your company has a global presence, our telecommunications solutions can provide you with local numbers from each of the regions and countries in which you are located. Thanks to the WebRTC technology on which Sword is based, you can configure the reception of your calls in any place, be that fixed, mobile or IP. Sword even redirects the calls to your personal phone number or Voicemail when the data coverage is poor. Whether you are at the office, at home or on the move, your business travels with you. No more lost phone calls, no need for expensive roaming plans or dual-sim phones. Get Sword app and start making and receiving calls using your PC, mobile, tablet or SmartTV. Thanks to our multi-line WebRTC, your business telephone line will always be available through any device at your reach.

AI-enabled Cloud Telephony Solutions & Deep Insights. Automate communication, bring operations online and handle the large volume of call inflow. Use Automated Outbound Solutions to reach out to students and parents. Conduct surveys and collect important data with just a missed call. Use Automated Outbound Solutions to reach out to your customers. Use IVR and hosted call center solutions for verification and reducing COD cancellations and operational costs. Offer assistance to your patients 24x7 with our hosted call center solutions. Save customers' time by coupling IVR with ASR allowing them to reach the concerned person in half the time, especially during emergencies and send them regular updates. Collect customer data for your marketing campaigns with missed call solutions and handle large call volume with Smart IVR. Reach out to your customers with important updates with our automated outbound solutions.

Full-service business phone systems. Real people. Business phone system experts. Local support to solve phone issues in minutes. When you join Callifi, you join our family. Therefore, we customize cutting-edge VoIP technology for each customer's business phone needs. In addition, you will always receive prompt service by our communications craftsmen. Above all, it is through this steadfast commitment, we have delighted customers for decades and plan to do so for many more. Streamline communications with advanced features such as convenient inbox, “do not answer” list, redundancy, telecommuter connect, white-glove customer service. Essentially, you’ve got Callifi on your side. Customize a VoIP phone system with the most relevant features for your business such as phone number, find me / follow me, conferencing, faxing, and security. And don’t worry, we help you every step of the way.