Two-Way SMS

Shortcode & Longcode Services

Run interactive SMS campaigns on dedicated shortcodes and longcodes with icpaas.ai — capture replies, keywords and opt-ins at scale.

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

Shortcode and longcode services turn one-way SMS into genuine two-way conversations. With icpaas.ai your customers reply, send keywords or opt in on a memorable number, while every inbound message routes straight to your application through delivery webhooks. As a TRAI/DLT-registered provider operating since 2015, we handle entity, header and template registration so your campaigns launch compliant.

Whether you need a five or six digit shortcode for high-recall promotions or a virtual longcode for support and lead capture, icpaas.ai connects you over direct operator routes for dependable delivery. Inbound messages reach your systems via REST API and SMPP v3.4, with consent and DND scrubbing handled automatically and full campaign analytics across every keyword you run.

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

Key capabilities

Dedicated Shortcodes

Provision memorable five or six digit shortcodes for high-recall promotions, contests, voting and rapid keyword-based opt-ins.

Virtual Longcodes

Get standard ten-digit longcode numbers for two-way support, lead capture and conversational replies without changing your sender.

Keyword Management

Define keywords and auto-responses so each inbound reply triggers the right workflow, opt-in or follow-up message instantly.

Inbound Webhooks

Route every received SMS to your application in real time through secure delivery webhooks for immediate processing and logging.

DLT & DND Compliance

We complete TRAI/DLT entity, header and template registration and run DND scrubbing with consent and opt-in management.

REST API & SMPP

Integrate two-way flows over REST API or SMPP v3.4 with SDKs for Node.js, Python, Java, PHP and Go.

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

Contest entriesSurvey responsesLead captureOpt-in subscriptionsCustomer supportAppointment confirmationsFeedback collectionVoting campaigns
Why icpaas.ai

Why teams choose us

  • TRAI/DLT-registered provider serving Indian enterprises since 2015.
  • Direct operator connectivity for high inbound and outbound delivery.
  • Real-time webhooks plus REST API and SMPP v3.4 integration.
  • 99.9% uptime handling 10M+ messages daily across India.
FAQ

Shortcode & Longcode Services — questions answered

Start with the best shortcode & longcode services

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