How many minimum SMS units are required for an API SMS?
The minimum SMS units required for sending an API SMS on Text.lk depend on the message length, encoding and firewall rules. How […]
How to Build and Grow SMS Subscriber List in Sri Lanka
In Sri Lanka’s fast-growing digital market, SMS marketing is a powerful way for businesses to connect directly with customers. But before you […]
How to choose the right SMS Sender ID for your Business in Sri Lanka
Best SMS Sender ID Choosing Guide in Sri Lanka by Text.lk. (10 Tips and Mistakes What to Avoid). Find Perfect SMS Sender […]
Text.lk OTP | Sending OTPs with Text.lk SMS Gateway Sri Lanka
Text.lk offers two simple methods to send OTPs via SMS: Quick Guide to Sending OTP via API:1. Set ‘type’ as ‘otp’.2. Use […]
How Text.lk Encodes Your Messages? UTF-16, GSM-7, GSM-7 Extension
Here is a simple explanation of GSM-7, GSM-7 Extension, and UTF-16 encoding as used on text.lk, written for easy understanding by all […]
What is UTF-16 Character Encoding in SMS?
Explore the UTF-16 character encoding standard—how it works, its variable-length scheme, surrogate pairs, byte order, and use cases in programming and SMS. […]
What is GSM-7 Extension Table for SMS? (GSM_7BIT_EX)
Learn what the GSM-7 Extension Table (GSM_7BIT_EX) is, how the escape mechanism works, which extra characters are included, and how these affect […]
What is GSM-7 Character Encoding in SMS?
GSM-7 is the foundational character encoding standard for SMS messaging across GSM mobile networks. It is designed to maximize the efficiency of […]
What is the No 1 Mobile Operator in Sri Lanka
Sri Lanka’s telecommunications landscape has evolved significantly over the years, with several mobile operators competing for market dominance. If you’re wondering which […]
SMS Campaign Guide – Avoid Spam & Maximize Delivery
Powered by text.lk Sending SMS campaigns? Follow these best practices to make sure your messages get delivered and not marked as spam. […]
How do I send bulk SMS using Text.lk SMS gateway with JavaScript?
Here’s a clean and working example of how to send bulk SMS using Text.lk’s GET API with JavaScript. This version includes: ✅ […]
What is best SMS Gateway in Sri Lanka
Text.lk is Best and Cheapest SMS gateway in Sri Lanka. In today’s digital era, businesses in Sri Lanka need reliable communication channels […]