Developer Tools

SMS Webhook Integration Engine

Real-time SMS webhooks that push delivery receipts, inbound replies and status events straight into your application as they happen.

DLT Smart Template Routing TRAI Compliant Operations OTP Priority Gateways Nationwide Network Delivery

The icpaas.ai SMS Webhook Integration Engine turns every message event into an instant, structured callback to your own endpoint. Delivery receipts, failures, inbound replies and DLT status changes are posted as clean JSON the moment they occur, so your application always reflects the true state of each SMS without polling, manual reconciliation or guesswork across high-volume campaigns.

Built by a TRAI/DLT-registered provider serving India since 2015, the engine pairs direct operator connectivity with signed, retried and ordered webhook delivery. You configure endpoints per route, secure them with secrets, and receive events for promotional, transactional and OTP traffic. With 99.9% uptime and over 10M messages handled daily, your callbacks stay reliable even at peak scale.

99.9%
SMS Uptime SLA
2–5s
OTP Latency
10M+
Daily Volume
100%
DLT Regulatory Compliant
What it does

Key capabilities

Real-Time Delivery Receipts

Receive DLR callbacks the instant operators confirm delivery or failure, keeping your message state perfectly accurate at all times.

Inbound Reply Webhooks

Capture two-way responses on longcodes and shortcodes, posting sender, keyword and message content straight to your endpoint.

Signed & Secure Payloads

Every webhook carries a signature and shared secret so your servers can verify authenticity and reject any spoofed requests.

Automatic Retries & Ordering

Failed callbacks retry with backoff and preserve event order, so transient outages never lose a single delivery status.

Per-Route Event Filtering

Subscribe specific endpoints to OTP, transactional or promotional events and filter by status to cut callback noise.

DLT Status & Compliance Events

Get callbacks for DND scrubbing, template rejections and header status so compliance issues surface immediately, not later.

How it works

Four Simple Steps

01

Establish templates

Draft message copy and DLT headers matching entity profiles.

02

Connect API hooks

Integrate transactional triggers inside website checkout steps.

03

Configure fallbacks

Set up secondary gateway routes for guaranteed failover delivery.

04

Scale communications

Execute automated runs and analyze latency performance.

Use cases

Common Use Cases

Order trackingPayment reconciliationOTP verificationTwo-way supportFintech alertsLogistics updatesCRM syncingCampaign dashboards
Why icpaas.ai

Why teams choose us

  • TRAI/DLT-registered provider trusted across India since 2015.
  • Signed, retried webhooks with guaranteed event ordering.
  • Direct operator connectivity for fast, accurate delivery receipts.
  • 99.9% uptime handling over 10M messages every day.
FAQ

SMS Webhook Integration Engine — questions answered

Start with the best sms webhook integration engine

Join the businesses utilizing low-latency API verification and bulk messaging solutions on icpaas.ai. Talk to our team and go live this week.