Developer Tools

Voice Call API for Developers

Embed programmable voice calling into any app with icpaas.ai's developer-first Voice Call API, backed by a 99.9% call-completion SLA.

Enterprise SIP Gateways TRAI Registered Telecom Partner 99.9% Call Completion SLA Toll-Free & Virtual Numbers

The icpaas.ai Voice Call API lets your developers place, receive and control calls directly from code, with no PBX hardware to buy or maintain. Trigger outbound calls, route inbound traffic, play recorded prompts, capture keypresses and stream call events to your systems in real time. As a TRAI-registered telecom partner serving India since 2015, we deliver carrier-grade voice through clean, documented endpoints.

Built for teams that ship fast, our API pairs simple REST calls and webhooks with deep telephony control over IVR menus, number masking, recording and live analytics. You connect agent mobile lines, virtual numbers and toll-free 1800 numbers without infrastructure overhead. With pan-India coverage and a 99.9% call-completion SLA, icpaas.ai handles the carrier complexity so your developers stay focused on the product.

99.99%
telephony SLA Uptime
100k+
Concurrent Channels
sub-2s
Call Connection Latency
100%
DND Scrubbed Broadcasts
What it does

Key capabilities

Programmatic Outbound Calls

Launch single or bulk outbound calls from a REST endpoint, with progressive and predictive dialer support built in.

Inbound Call Routing

Receive calls on virtual or toll-free numbers and route them to agent mobiles or IVR flows via webhooks.

Programmable IVR Control

Build multi-level IVR menus in code, play prompts, capture keypresses and branch call flows dynamically per caller.

Real-Time Call Events

Subscribe to webhooks for ring, answer, hangup and DTMF events to drive your application logic instantly.

Recording and Analytics

Record calls on demand and pull real-time analytics on completion, duration and outcomes through the API.

Number Masking and CRM Sync

Mask numbers for privacy with click-to-call and push call data straight into your CRM via integration.

How it works

Four Simple Steps

01

Define routing rules

Design agent queue priorities and set working-hour call rules.

02

Set up audio files

Upload professional voice greetings in regional languages.

03

Deploy SIP & API hooks

Integrate click-to-call buttons and OTP voice lines to backend portals.

04

Analyze telephony stats

Review call length metrics, response rates, and agent efficiency.

Use cases

Common Use Cases

Appointment remindersOTP voice fallbackClick-to-call appsDelivery confirmationsLead qualificationPayment follow-upsFintech verificationSupport callbacks
Why icpaas.ai

Why teams choose us

  • TRAI-registered telecom partner serving India since 2015
  • 99.9% call-completion SLA with pan-India coverage
  • Clean REST endpoints, webhooks and clear documentation
  • No PBX hardware; agents answer on their mobiles
FAQ

Voice Call API for Developers — questions answered

Start with the best voice call api for developers

Join the brands growing sales, routing customer inquiries, and capturing leads with cloud telephony on icpaas.ai. Talk to our team and go live this week.