Voice API

Programmable voice calls with advanced features.

Features

Key Capabilities

Inbound/Outbound

Full call control

IVR

Interactive voice response

Recording

Call recording and storage

Speech-to-Text

Real-time transcription

Applications

Use Cases

Contact Center

Build cloud contact center experiences with intelligent call routing, queue management, and agent dashboards.

Automated Outreach

Run automated outbound call campaigns for appointment reminders, payment collection, and customer surveys.

Click-to-Call

Add click-to-call buttons to your website or app. Connect customers to sales or support agents with one tap.

Voice Verification

Deliver OTP codes via automated voice calls for users who cannot receive SMS or prefer voice delivery.

Integration

How It Works

1

Get a Number

Provision a voice-enabled phone number from the SMSLY dashboard or API.

2

Define Call Flows

Use our Call Control API or visual flow builder to define what happens when calls are made or received.

3

Handle Events

Receive real-time webhooks for call events — ringing, answered, DTMF input, recording ready — and respond dynamically.