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VoIP Software with API (2026) - Page 2

Last updated: April 2026

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183 software options

Intermedia Unite logo
Category Leaders

All-in-one communications & collaboration tool

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Award-winning VoIP business phone system that helps small businesses lower costs and increase employee productivity. With complementary mobile and desktop apps Unite users stay seamlessly connected. Unite is backed by J.D. Power-certified 24/7 support and a 99.99% uptime service level agreement.

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CallTools logo
Category Leaders

All-in-one predictive dialer & inbound call center solution

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CallTools is an all-in-one call center solution offering an outbound power dialer & inbound call center with live agent monitoring, skill-based routing, & more. Unlimited Minutes on Predictive, Power, and Preview Dialer with Built-In Web Phone, CRM, and Dedicated In-House Support Team. Call us now!

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Emitrr logo
Category Leaders

Customer engagement platform for local business owners

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Emitrr functions as an AI-based business toolbox that operates continuously to streamline customer communication and business operations. The platform enables businesses to text-enable existing phone lines, allowing teams to send individual or group messages while managing multiple phone lines from a unified inbox. Team members can assign conversations, route messages, and leave internal comments to facilitate efficient collaboration.

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Zoom Phone logo

Cloud-based business phone system

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Zoom Phone is a cloud VoIP phone software designed for businesses of all sizes. With a streamlined administration interface and secure voice calls, Zoom Phone offers a flexible solution for remote workforces. It also features global coverage, virtual phone numbers, fixed VoIP, cloud PBX, multi-line phone systems, and a Zoom Phone API, among other functionalities.

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CloudTalk logo

Cloud-based call center software for sales and support teams

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CloudTalk is a VoIP phone system built for modern companies. Make things easier for your sales and customer support teams with 70+ advanced features and easy-to-setup integrations with your existing business software. It’s the perfect phone system for mid-sized companies. Try a FREE 14-day trial.

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Gladly logo

Cloud-based customer service platform

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Gladly is the only CX AI that delivers cost savings AND customer devotion—built to engage, not deflect. Learn more at gladly.ai

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Close logo

The conversation-first CRM for small, scaling sales teams

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Close is the sales engagement CRM that helps SMBs turn more leads into revenue. Get advanced VoIP calling features like the Power Dialer and Predictive Dialer. With local phone numbers available, you can increase your call volume from anywhere in the world.

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Genesys Cloud CX logo

AI-enabled experience orchestration platform

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Genesys Cloud CX cloud contact centre lets you differentiate faster, adapt easier, and architect better with an all-in-one composable modern architecture

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Squaretalk logo
Category Leaders

All-in-one contact center platform for sales automation

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Squaretalk is a powerful and versatile cloud communications platform with automations and integrations made simple. So simple, you'll have time for the other parts of your business.

Connect your favorite tools like Zoho, Salesforce, or other popular CRMs with our native integrations or custom API.

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Acefone logo

VoIP Phone Service trusted by modern businesses

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Acefone is a VoIP service provider trusted by 10,000+ reputed companies. From guaranteed 99.5% uptime and 24x7x365 support to unlimited calling, get everything your business needs for flawless customer service and butter-smooth operations. Special offer: Unlimited calling at just $12.99/user/month

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RingCX logo

AI-powered contact center

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RingCentral RingCX: AI-powered, omnichannel contact center with unified communications. Simplify customer experiences effortlessly.

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MiVoice Business Solution logo

AI-powered communications solutions for all industries

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MiVoice Business delivers a full communications solution with business phone features, chat and video messaging, audio and video conferencing, collaboration, and AI-integrated contact center capabilities that enables faster and more effective communications.

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UJET logo
Category Leaders

Customer interaction & support platform with CRM integration

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UJET is a modern cloud contact center software company with leading innovation in smartphone-era customer support on the web, phone, and mobile apps.

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Phonexa logo

Cloud-based all-in-one marketing platform

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Phonexa is an all-in-one marketing software with a suite of eight products for calls, leads, clicks, email, SMS, and more. The company services D2C companies with high-volume consumer traffic. Industries include financial services, insurance, home services, legal, real estate, and Healthcare.

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Bright Pattern logo

Cloud Contact Center Software with Embedded AI

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Leading global provider of AI-powered omnichannel cloud contact center software.

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Readymode logo

Cloud-based, all-in-one predictive dialer for outbound sales

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Readymode is an all-in-one predictive dialer with dialing speeds that adjust to agent availability, DID reputation management, call cadencing, inbound/outbound channels, ACD, IVR, call recording, a live floor map of agents and reporting.

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ZIWO logo

API Based cloud contact center software with CRM Integration

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ZIWO is a cloud call center software for sales, marketing, customer support for real or virtual agents. Features include CRM integration, outbound dialer, virtual phone , call tracking, call masking , Agent and Admin Mobile App along with live monitoring of Inbound & Outbound KPI such as IVR, FCR.

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8x8 Work logo

Integrated contact center, voice, chat, video, and APIs

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8x8 Work: Your all-in-one collaboration hub - phone, video, messaging. Secure unified communication for every employee, anywhere, any device.

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Bird logo

Enterprise cloud communications platform

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Build fast, reliable and secure Voice applications for your business with MessageBird's powerful VoIP infrastructure.

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Bandwidth logo

Coding APIs for adding telephony, SMS & 911 calling to apps

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Bandwidth offers a suite of API products for businesses and developers wanting to add voice calling, secured 2FA text messaging (SMS), MMS or 9-1-1 emergency call connectivity to software and applications, while also accessing SIP trunking, routing, address verification and number porting services

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Intulse logo

VoIP business phone system for organizations of all sizes

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Intulse is a cloud-based VoIP service designed to help organizations streamline processes for inbound and outbound phone communications. Key features of our managed VoIP services include team collaboration, call queue management, conference calling, voicemail, number porting, and reporting.

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JustCall logo

AI-Powered Customer Communication for Sales & Support Teams

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JustCall is an all-in-one VoIP system with AI-powered calls, messaging, CRM sync, call monitoring, and global reach across 70+ countries.

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11Sight logo

The shortest path to revenue.

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#1 Inbound Video Call Platform for Revenue Teams.

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OnSIP logo
Category Leaders

Cloud-based softphone and voicemail platform

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OnSIP is a softphone and private branch exchange (PBX) solution that helps businesses to manage call recording, transfers, monitoring, reporting and more. It allows companies to utilize the desktop or mobile applications to conduct HD video or voice conferences as well as manage voicemails.

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Pexip Connect logo

All-in-one solution for seamlessly joining meeting rooms

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Seamlessly join Microsoft Teams or Google Meet meetings from your favorite meeting rooms with the touch of a button!

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