Information & Documentation

How to use the World Text APIs, helper libraries, general information and user guides.

General

Compliance Guide

A guide to SMS and the law in the UK and other countries.

Country Codes

Country code prefixes for routing SMS correctly.

Coverage

Outbound SMS coverage by country and network.

GSM Character Set

Hex/decimal GSM and extended GSM characters.

Length & Concatenation

GSM and Unicode message length guidance.

Message State & Error Codes

State codes and common error codes.

Nagios SMS Alerts

Guide to sending alerts from Nagios.

North America Messaging

10DLC, Toll‑Free and Short Codes.

Terms & Conditions

World Text terms of service.

Privacy Policy

Privacy policy and data handling.

Service Information

Short Codes

Inbound SMS via 5-6 digit short codes.

SMS Pricing

Standard pre‑pay pricing for outbound SMS.

Virtual Numbers

Pricing for inbound and two‑way virtual numbers.

SMS APIs

HTTP Helper Libraries

Libraries that encapsulate API calls.

HTTP HLR Lookup

Validate numbers and lookup networks via HTTP.

HTTP Inbound SMS

Inbound MO SMS forwarding formats.

HTTP REST SMS API

Send SMS and manage groups via REST.

SMPP SMS API

High throughput SMPP connectivity.

Email to SMS

Send SMS via email (SMTP).

Bulk SMS via Email

Bulk email interface for dynamic content.

User Guides

Auto Responder

Configure inbound SMS processing rules.

SMS to Email Gateway

Configure the Email to SMS gateway.

Transform Messaging with World-Text

Send SMS messages from one platform. Use the HTTP API for alerts and notifications, or two-way messaging for conversations. Volume pricing and delivery reporting included.