Our voice communication services include SIP Calling and Voice API, enabling businesses to build high-quality, low-latency voice solutions for call centers, customer support, authentication, and more.
Voice API
Lead the conversation and deliver a better customer experience with the Vonage programmable Voice API. Personalize the WebRTC and PSTN calling experience with user context and data at your fingertips. Innovate, streamline, and scale with flexible voice capabilities—all on a reliable, high-quality global carrier network billed on a per-second basis so you pay only for what you use.
Our Programmable Voice API enables the creation of automated and personalized customer interactions with AI
From voice bots to customized conversational AI and analytics, Vonage has you covered with tools, guides, and seamless integrations to differentiate your customer experiences while optimizing workflows.
SIP Calling
Voice Solutions
SIP Calling – Seamlessly integrate with PBX, VoIP devices, and softphones using SIP (Session Initiation Protocol).
Voice API – Make and receive calls via API, supporting TTS (Text-to-Speech), IVR (Interactive Voice Response), and other intelligent voice features.
Branded Calling
Engage your customers with the ease, convenience, and security of embedded voice calling — right from your apps and website.
Promote trusted relationships by showcasing company name, logo, and call reason directly on the recipient’s lock screen to enhance brand visibility.
Authenticate customers through app sign-in to simplify the connection.
Augment and complement robotic IVRs with direct click-to-call to the right department or your contact center.
Your customers are ready for AI
The Vonage Global Customer Engagement Report 2024 showed that 80% of global consumers have used AI tools recently, and the majority are happy to do so — as long as they get the results they want.
SIP Calling is ideal for enterprise-grade phone systems, offering high-definition audio and scalability for global communication.
Direct SIP Connectivity – Supports SIP softphones, PBX systems, and WebRTC
Global VoIP Interconnect – Enables international calls with low latency and high reliability
PSTN & SIP Integration – Seamlessly connect traditional phone networks with SIP devices
Secure Communication – Supports encrypted transmission for enhanced call security
Use Cases
- Enterprise telephony systems
- Customer service call centers
- Conference calls & collaboration tools
Voice API Services
Our Voice API enables businesses to integrate advanced voice capabilities, offering personalized voice notifications, automated IVR, and call analytics.
Make & Receive Calls Automatically
Text-to-Speech (TTS) – Supports multiple languages and voice styles
Interactive Voice Response (IVR) – Guides customers through automated menus
Call Recording & Voice Analytics – Enhance business insights
Voice Authentication – Improve security with biometric voice recognition
Use Cases
- Automated Voice Notifications – Order updates, flight alerts, OTP (One-Time Passwords)
- Smart Customer Service – AI-powered IVR and call routing
- Two-Way Calling – Inbound & outbound voice services