What is DLT in Bulk SMS? - SMSINDIAHUB
What is DLT in Bulk SMS?

What is DLT in Bulk SMS?

DLT in Bulk SMS refers to Distributed Ledger Technology, a blockchain-based system implemented to regulate and secure SMS communications in industries like banking, e-commerce, and telecommunications. It is primarily used to prevent spam, ensure compliance with government regulations, and enhance transparency in SMS communication.

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What is DLT in Bulk SMS? >> Complete guide on DLT:

Type of DLT Templates:

Promotional SMS Service Implicit SMS Service Explicit SMS Transactional SMS
Promotional bulk sms is used for sending offers, discount and Marketing sms to new or existing clients. To send informational sms that are not marketing in nature. To offer updates on services to existing customers. To convey critical information triggered by the customers interaction.
Example Example Example Example
Sales promotionals and special offers. Service notifications not covered by service explicit category. SMS designed to promote or sell products and servics. Order confirmation, OTPs for transactions.
DND Number DND Number DND Number DND Number
Not allowed. Allowed. Not allowed. Allowed.
Sender ID Sender ID Sender ID Sender ID
Six cheracters numeric, starting with numeral for the business category Six cheracters alphabetic Six cheracters alphabetic Six cheracters alphabetic, reflecting the brand.

bulk sms pricingDLT Content Templates Explained

In India, the DLT platform categorizes message content into four distinct types, each with specific guidelines to ensure compliance and effective communication:


1. Transactional SMS:

  • Purpose: To convey critical information triggered by the customers interaction.
  • Examples: Any order confirmations, OTPs for transactions.
  • DND Numbers: Allowed.
  • Time Restrictions: None, can be sent 24x7.
  • Sender (Name) ID: Six characters, alphabetic, reflecting the brand.
  • You can read more about transactional SMS

2. Service Implicit SMS:

  • Purpose: To send informational sms that are not marketing in nature.
  • Examples: Service notifications not covered by service explicit category.
  • DND Numbers: Allowed.
  • Time Restrictions: None.
  • Sender ID: Six characters, alphabetic.
  • You can read more about Service Implicit

3. Service Explicit SMS:

  • Purpose: To offer updates on services to existing customers.
  • Examples: Messages designed to promote or sell products/services.
  • Consent: Required.
  • DND Numbers: Not allowed.
  • Time Restrictions: None.
  • You can read more about Service Explicit

4. Promotional SMS:

  • Purpose: For marketing, offers, and sales engagement.
  • Examples: Sales promotions and special offers.
  • Consent: Required.
  • DND Numbers: Not allowed.
  • Time Restrictions: 10 a.m. to 9 p.m.
  • Sender ID: Six characters, numeric, starting with a numeral for the business category.
  • You can read more about Promotional SMS
What is DLT in Bulk SMS?
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