Voice API

Programmable Voice Infrastructure for Software Teams

Initiate, receive, and control real phone calls globally using carrier-grade APIs. Replace legacy PBX systems with scalable, cloud-based voice infrastructure.

Get API Key View Documentation 
POST /v1/calls
{
  "to": "+15551234567",
  "from": "+15559876543",
  "action": "connect",
  "webhook_url": "https://api.yourapp.com/events"
}
01

Global PSTN & SIP Coverage

Reach customers worldwide with direct carrier-grade PSTN and SIP connectivity.

02

Carrier-Grade Routing

Intelligent routing engine for optimal call quality and cost efficiency.

03

Real-Time Call Events

Stream real-time call events into your internal systems instantly.

04

Enterprise Security

Secure infrastructure with encrypted signaling and fraud detection systems.

Common Use Cases

Explore how businesses leverage our voice infrastructure

Voice API

Our Voice API enables software applications to initiate, receive, and control phone calls over real telecom networks using programmable APIs. Instead of operating traditional PBX systems or call centers, teams can treat voice communication as software—fully automated, scalable, and integrated into their applications.

  • Outbound calling: Trigger calls from your application for verification, notifications, or customer engagement.
  • Inbound calling: Accept calls from customers and route them dynamically based on business logic.
  • Call control: Answer, transfer, hang up, play audio, collect keypad input (DTMF).
  • IVR & routing: Build interactive voice menus and route calls to agents, teams, or bots.
  • Event-driven architecture: Receive call lifecycle events (ringing, answered, completed, failed) via webhooks.

Messaging API (SMS & MMS)

The Messaging API allows applications to send and receive SMS and MMS messages over mobile carrier networks with real-time delivery tracking, two-way messaging, and scalable throughput. It is designed for transactional communication, authentication, and customer engagement at scale.

  • SMS sending: Deliver short text messages for alerts, OTPs, and notifications.
  • MMS support: Send rich media messages including images and longer content.
  • Two-way messaging: Receive inbound messages and replies from end users.
  • Delivery receipts: Track message status (queued, sent, delivered, failed).
  • Throughput control: Handle high-volume messaging with predictable performance.

MMS API

MMS API enables businesses to send rich multimedia messages over global carrier networks using programmable cloud-based infrastructure. It allows teams to deliver engaging content—such as images, videos, and branded media—directly to users’ mobile devices without managing complex telecom integrations. Seamlessly integrate multimedia messaging into your applications, workflows, and customer engagement strategies.

  • Rich media messaging: Send images, GIFs, videos, and longer text content in a single message.
  • Two-way communication: Receive inbound MMS messages and user replies in real time.
  • Media hosting & delivery: Securely host and distribute media with reliable global routing.
  • Delivery tracking: Monitor message lifecycle events (queued, sent, delivered, failed).
  • Scalable throughput: Support high-volume multimedia campaigns with predictable performance.
  • Carrier compliance: Built-in formatting and routing optimized for telecom networks worldwide.

CORE CAPABILITIES

Contact Centers

Scale inbound and outbound support operations globally.

Verification Calls

Deliver OTP fallback when SMS delivery fails.

Appointment Reminders

Automate voice notifications and confirmations.

Call Masking

Protect user privacy by proxying phone numbers.

Event-Driven Architecture

Receive real-time webhooks for call lifecycle events such as ringing, answered, completed, or failed. Automate workflows based on call outcomes and metadata.

  • Call state tracking
  • DTMF input collection
  • Transfer between endpoints
  • Webhook-based automation
{
  "event": "call.completed",
  "call_id": "cl_92837273",
  "duration": 124,
  "status": "success"
}

Built for Enterprise Scale

Global Carrier Connectivity

Direct integrations with telecom operators worldwide.

High Availability

Redundant routing ensures maximum uptime.

Security & Compliance

Enterprise-grade encryption and data protection.

Scalable Infrastructure

Handle millions of calls with predictable performance.

Build Voice Into Your Product Today

Launch global calling, SIP trunking, and programmable voice in minutes with enterprise-grade infrastructure.

Request API Access Talk to Sales