- SMS works on every phone, with no app and no internet needed.
- Short, timely messages suit it best: offers, reminders, alerts and OTPs.
- Delivery reports and link clicks give simple measurement.
- It needs consent, DLT registration and restraint to stay effective.
Reach without an app
Text messages arrive on feature phones and smartphones alike. A customer does not have to install anything or be online, which matters in a country with a wide range of devices and connections.
Speed and attention
An SMS lands in the same inbox as personal messages, so it tends to be opened quickly. That makes it a good fit for anything time-bound: a flash offer, a delivery slot, a payment due date or a one-time password.
Measurable and flexible
- Delivery reports show what reached the handset and what failed.
- Short links let you count clicks on a campaign.
- Scheduling lets you send at the right hour.
- Personalisation with the customer's name or order detail makes a short message relevant.
See how this works in our promotional campaigns use case.
Limits to plan for
SMS is plain text with a short length, so it is not the place for rich visuals; RCS or email suit that better. Messages must follow TRAI rules, including DLT-approved templates and consent. Sending too often is the quickest way to lose subscribers.
Many teams pair SMS with email and WhatsApp. Our comparison of email marketing and bulk SMS helps choose the mix.
Where SMS fits best
The strongest uses share one trait: the message is short and the timing matters.
- Appointment and delivery reminders that cut missed visits and failed deliveries.
- Payment and renewal notices sent before the due date.
- Limited-time offers with a clear end date.
- Verification codes that must arrive within seconds.
- Event and class updates that change at short notice.
A simple example (illustrative)
A coaching centre sends a reminder the evening before each class and a short fee notice three days before the due date. Parents get the same wording every time, from the same registered sender name, so they learn to recognise it. The centre reviews delivery reports weekly and removes numbers that repeatedly fail. This is an example of the approach, not a result from a specific customer.
How to start well
- Register on DLT and get your first templates approved.
- Collect consent wherever contacts first share their number.
- Begin with service or transactional messages, then add offers.
- Review delivery and click reports after each send.
Mantraxtel's bulk SMS service helps with the registration and sending steps.
Sources and further reading
Rules and platform requirements change. Last reviewed . This guide is general information, not legal advice.