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What is DLT Registration?

DLT stands for Distributed Ledger Technology — a blockchain-based registration system mandated by TRAI (Telecom Regulatory Authority of India) under the TCCCPR (Telecom Commercial Communications Customer Preference Regulations) 2018. The DLT framework was introduced to create a transparent, traceable, and accountable ecosystem for all commercial SMS traffic in India, ensuring that every message sent can be verified and audited.

Every business (called a "Principal Entity") that sends commercial SMS in India must register on a DLT platform. This applies to all types of messages — transactional messages such as OTPs, alerts, and notifications, as well as promotional messages including marketing campaigns and offers. Whether you use SpringEdge's SMS & RCS messaging services or integrate via our developer API, DLT registration is a prerequisite for sending any SMS to Indian mobile numbers.

Non-compliance means your SMS messages will be blocked by telecom operators at the network level. DLT ensures transparency, traceability, and consent management across all SMS traffic in India. The system verifies the sender's identity, validates the message content against approved templates, and checks recipient consent preferences — all in real time before a message is delivered.

How DLT Registration Works

1
Register Entity

Register your business as a Principal Entity on any DLT platform with KYC documents.

2
Register Headers

Submit your Sender IDs (6-character headers) for approval on the DLT portal.

3
Approve Templates

Create and submit your SMS content templates for operator approval.

4
Start Sending

Configure your DLT credentials in SpringEdge and start sending compliant SMS.

Each step is explained in detail in our dedicated guides below. You only need to register on one DLT platform — the registration is valid across all Indian telecom operators. Visit our entity registration guide, sender ID registration guide, and template approval guide for step-by-step instructions.

DLT Registration Step by Step

Below is the end-to-end DLT registration walkthrough every Indian business follows to start sending DLT-compliant SMS. The full process takes 5–10 business days depending on operator response times. SpringEdge handles steps 2–5 on your behalf if you sign up for a managed account — you only need to gather the documents in step 1 and approve final templates in step 4.

Step 1.Gather Required Documents

Collect the documents required for DLT entity registration: PAN card, GST certificate, Certificate of Incorporation, address proof, and authorised signatory ID. For sole proprietorships, an Aadhaar card and PAN are sufficient. Have a working phone number and email address ready — OTPs are sent during registration. Time: ~1 hour.

Step 2.Register as a Principal Entity

Sign up on any one operator's DLT portal — Jio TrueConnect, Airtel, Vodafone Idea (Vilpower), or BSNL/MTNL Smartping. Submit your business documents and pay the one-time registration fee (typically ₹5,000–7,000). Once your entity is approved, your Entity ID propagates across all four DLT portals automatically. Time: 2–5 business days. Detailed entity registration guide.

Step 3.Reserve and Approve Your Sender ID (Header)

Pick a 6-character alphanumeric sender ID that represents your brand (e.g. SPEDGE, ZOHOIN, ICICIB). Submit the header for approval against your Entity ID. The header gets approved on each operator separately — SpringEdge submits to all four in parallel. Approved headers are then bound to your DLT-approved templates. Time: 2–4 business days. Sender ID approval guide.

Step 4.Submit Message Templates for Approval

Draft every variation of every SMS body you will send (transactional, service, or promotional) using {#var#} placeholders for dynamic content. Submit each template under the correct DLT category (Service Implicit, Service Explicit, or Promotional) bound to your sender ID. Templates are scrubbed by each operator and approved separately. Time: 24–48 hours per template once submitted. Template approval guide.

Step 5.Connect to a DLT-Compliant SMS Provider

Once your entity, sender ID, and templates are approved, integrate with a DLT-aware SMS API. The Spring Edge SMS API auto-validates outgoing messages against your registered templates, blocks malformed sends with clear error codes, and reports delivery via webhooks. API documentation · Transactional SMS API. Time: 5–15 minutes for basic integration.

Step 6.Send Your First DLT-Compliant SMS

Make your first API call — the SMS reaches the recipient within 3 seconds on direct operator routes, with delivery status pushed to your webhook. Monitor delivery rates and template performance from the dashboard. If a template gets flagged or rejected by an operator post-approval, the dashboard surfaces the alert and lets you re-submit a corrected version without rewriting code. Time: under 1 minute per SMS.

Total end-to-end time: 5–10 business days for first-time registration; 24–48 hours for adding new templates to an already-registered entity. If you need help at any step, our team handles the operator-side work for you — request DLT support.

DLT Platform Comparison

Compare the four DLT platforms side-by-side to choose the best one for your business.

Feature Jio TrueConnect Airtel Vodafone Idea (Vilpower) Smartping
Portal URL trueconnect.jio.com airtel.in/business/commercial-communication vilpower.in smartping.live
Registration Fee Rs 5,000 + GST/year Rs 5,000 + GST/year Rs 5,000 + GST/year Rs 5,000 + GST/year
Approval Timeline 2-7 business days 1-3 business days 2-5 business days 2-5 business days
Entity Types Enterprise, Startup, Govt Enterprise, Startup, Govt Enterprise, Startup, Govt Enterprise, Startup, Govt
Template Categories All (Trans, Promo, SI, SE) All (Trans, Promo, SI, SE) All (Trans, Promo, SI, SE) All (Trans, Promo, SI, SE)

Frequently Asked Questions about DLT

  • What is DLT registration and why is it mandatory in India?

    DLT (Distributed Ledger Technology) registration is a blockchain-based compliance system mandated by TRAI under the TCCCPR 2018 regulations. Every business that sends commercial SMS in India — whether transactional (OTPs, alerts) or promotional (marketing, offers) — must register as a Principal Entity on a DLT platform. The mandate was introduced to curb Unsolicited Commercial Communication (UCC), protect mobile subscriber privacy, and ensure transparency in SMS traffic. Without DLT registration, your SMS messages will be blocked by all Indian telecom operators.

  • You only need to register on one DLT platform — the registration is valid across all Indian telecom operators. Airtel DLT is recommended for fast approvals (1-3 business days). Jio TrueConnect is the most widely used platform with a comprehensive portal. Vodafone Idea (Vilpower) was one of the earliest platforms and has wide acceptance. Smartping by Satzilio Telecom offers a modern registration interface. Choose based on approval speed, portal usability, and your preference. See our detailed comparison above.

  • Yes, you can register on multiple DLT platforms, but it is not required. Registering on one platform is sufficient — your entity registration, sender IDs, and templates are synchronized across all operators through the DLT blockchain. However, some businesses register on a second platform as a backup or for faster template approvals.

  • The required documents vary by entity type. For private limited companies: PAN card, GST certificate, Certificate of Incorporation, and Letter of Authorization. For partnerships: partnership deed and PAN. For proprietorships: PAN, GST, and Aadhaar of the proprietor. For government entities: official letter on department letterhead. All entities need an authorized signatory's ID proof (Aadhaar/passport) and a company email address. Visit our entity registration guide for complete document lists by entity type.

  • Entity registration typically takes 1-7 business days depending on the platform. Airtel has the fastest approvals (1-3 days), while others may take up to 7 days. Sender ID (header) approval takes 1-3 days after entity approval. Template approval usually takes 24-72 hours. The entire end-to-end process from entity registration to sending your first DLT-compliant SMS takes approximately 5-15 business days.

  • A Principal Entity (PE) is the business that owns the SMS content — for example, a bank sending OTP messages or an e-commerce company sending order confirmations. A Telemarketer (TM) is a third-party service provider that sends SMS on behalf of a Principal Entity — for example, an SMS aggregator or marketing agency. The DLT ecosystem requires a valid PE-TM chain — the PE must share their Entity ID with the TM, and the TM links it on the DLT platform. Messages are only delivered when this PE-TM chain is verified during scrubbing. Most businesses should register as a Principal Entity and share their Entity ID with SpringEdge (the Telemarketer) to complete the chain. See our entity registration guide for details.

  • DLT platforms classify templates into four categories: Transactional — triggered by a user action (OTP, order confirmation, payment alert), delivered 24/7 including to DND numbers. Promotional — marketing messages, delivered only 9 AM-9 PM, filtered against NDNC registry. Service Implicit — informational messages to existing customers based on an existing relationship. Service Explicit — messages to customers who have explicitly opted in. See our template approval guide for details.

  • You cannot directly transfer a DLT registration from one operator to another. However, since DLT is a distributed blockchain, your entity registration on one platform is recognized across all operators. If you want to switch platforms, you would need to create a new registration on the target platform. Your existing sender IDs and templates would need to be re-registered on the new platform.

  • Messages sent without proper DLT registration will be blocked at the operator level during the DLT scrubbing process. The scrubbing checks verify that the sender entity ID, sender ID (header), and content template are all registered and approved on the DLT platform. If any of these fail verification, the message is rejected and will not be delivered. Additionally, operators may penalize non-compliant entities.

  • SpringEdge simplifies DLT compliance in several ways. Our platform automatically validates your DLT entity ID, sender IDs, and template IDs before sending messages. We provide real-time error reporting if any DLT parameter fails validation. Our support team can guide you through the entire registration process on any DLT platform. Once registered, simply configure your DLT credentials in the SpringEdge dashboard and our API handles compliance automatically.

  • TRAI now requires all DLT templates to use typed variable tags instead of the generic {#var#} placeholder. The approved tags are: {#numeric#} for numbers (OTPs, amounts), {#alphanumeric#} for text and IDs, {#url#} for website links, {#urlott#} for OTT/app links, {#cbn#} for callback numbers, and {#email#} for email addresses. New templates must use these typed tags, and existing templates using {#var#} are being phased out. See our template approval guide for details.

  • All DLT platforms charge a registration fee of Rs 5,000 + GST per year. Header and template registrations are free on all platforms.

  • Log in to your DLT portal (Jio TrueConnect, Airtel, Vilpower, or Smartping) and navigate to the entity management or registration status section. Your registration status will show as "Pending", "Approved", or "Rejected". If approved, you will see your 19-digit Entity ID which is required for configuring your SpringEdge API account. If rejected, the portal will show the rejection reason — typically incomplete or mismatched KYC documents.

Need Help with DLT Registration?

SpringEdge's compliance team can guide you through the entire DLT registration process — from entity registration to template approval. Get expert assistance and start sending compliant SMS faster.