Twilio Voice
Create a scalable voice experience with the API that connects millions globally. With Twilio Voice, you can build unique phone call experiences with one API, to create, receive, control and monitor calls with just a few lines of code. Create an engaging voice experience that you can quickly scale and modify with a wide array of customization options and resources, like our Voice SDK. Then, add on features like Interactive Voice Response (IVR), recording transcriptions, and speech recognition to create an experience that your customers will appreciate.
Whether you're looking to set up global conferencing or alerts & notifications, Twilio has the support you need for building with Voice. Find docs, code samples, helper libraries, and developer tools such as Twilio Runtime and our visual workflow builder, Studio.
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Aircall
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.
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Zadarma
Powerful Cloud Telephony for Global Businesses
Zadarma offers a feature-rich VoIP platform designed for businesses that want flexibility, scalability, and professional communication without high costs. Set up your cloud PBX in minutes, manage international teams, and serve customers worldwide — all from a single interface.
Key features:
- Virtual phone numbers in 110+ countries
- Free cloud PBX with IVR, call routing, and analytics
- Integration with CRMs: HubSpot, Zoho, Bitrix24, and more
- AI Voice Agent and AI-speech recognition and analytics
- Apps for desktop, mobile, and browser-based calling
- AI-powered voice agents and call tracking
- Full control via web interface and API
Ideal for remote teams, support centers, and growing companies looking to modernize their phone systems.
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Routee
Routee is an intelligent omnichannel communication platform (CPaaS) offering advanced Web and API automation for all industries worldwide. Powered by AMD Telecom’s robust infrastructure, Routee's services enable businesses to optimize their marketing & business processes.
-SMS Marketing: tailor-made messages based on customers' individual preferences
-Email Marketing: personalized newsletters & email campaigns based on an audience's behavioral data
-Transactional Email: automated emails to customers on important data regarding their transactions
-Marketing Automation: rich forms & customer data capture, automation of repetitive marketing tasks, and tracking of marketing campaigns
-Two Factor Authentication: a second layer of security with fallback through SMS, Voice, Viber & Missed Call
-Cloud IVR: multilingual capabilities, turning speech into text, & text to human-sounding speech
-Push Notification: personalized web & mobile push notifications, based on segmentation and user
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