Bulk SMS FAQ | Frequently Asked Questions

Q: What is the difference between Promotional SMS, Service SMS OR Transactional SMS?

Promotional bulk SMS is used for marketing to Non-DND numbers between 10 AM and 9 PM. Service Implicit SMS sends 24x7 OTPs and informational alerts to all users. Service Explicit SMS sends marketing updates to consenting existing customers. Transactional SMS is reserved exclusively for banks.

Q: Why businesses, NGO, SME, Showroom, Banks etc use bulk SMS service for their businesses?

Bulk SMS open rate is 90 to 95% compared to only 10% on social media. Bulk SMS is viewed instantly, generating high engagement and immediate conversion.

Q: How SMSINDIAHUB is India’s No. 1 bulk SMS service provider?

We offer cloud-based web panels, robust REST APIs, scheduling, live campaign tracking, instant delivery within 8 seconds, and 2FA APIs for enterprise platforms.

Q: How to Send bulk SMS online?

1. Create free account. 2. Choose plan and purchase credits. 3. Upload DLT Sender ID and Template. 4. Upload contacts from Excel. 5. Compose message. 6. Track real-time delivery reports.

Q: What is the cost of bulk SMS Service?

Our bulk SMS software is completely free; you only pay for SMS credits. 1 credit = 1 SMS (160 English characters or 70 Unicode characters).

Q: How to send WhatsApp sms through API?

We provide official WhatsApp API integration for web applications and CRMs, delivering messages from your own verified business mobile number with two-way communication.

TRAI Commercial Communications Preferences 2018

Difference Between SMS Routes

As per TRAI commercial communication preferences 2018, text bulk sms is classified into 3 category. Details are as given below.

Attribute	Promotional SMS	Service Implicit SMS	Service Explicit SMS	Transactional SMS
Purpose & Usage	Promotional bulk sms is used for sending offers, discount and Marketing sms to new or existing clients.	Service Implicit SMS is used to send OTP SMS, transactional Alerts, Informational SMS to your registered user. These should not be used for marketing.	Service Explicit SMS are used to send marketing message, offers, discounts, or updates regarding services to only existing customers. It Should not be sent to New Customers.	Transactional SMS can only be used by Banks to send OTP and Transactional Alerts.
Recipient & DND Filter	Promotional content will be delivered to only NON DND recipients. SMS credit deducted only for NON DND Mobile numbers.	Service Implicit SMS will be delivered to all recipients DND and NON DND Mobile numbers.	Service Explicit SMS will be delivered to customers who have given permission to receive SMS from your business in written form Or through client consent.	Transactional SMS will be delivered to all DND and NON DND Mobile numbers.
Sending Hours	Promotional bulk SMS sent between 10 AM and 9 PM Only.	Service Implicit SMS can be sent 24x7. There is no time restriction in this route.	Service Explicit SMS can be sent 24x7. There is no time restriction in this route	Transactional SMS can be sent 24x7. There is no time restriction in this route
Sender ID / Header	Promotional bulk SMS delivered with a numeric Header. Alphabetic sender id is not allowed for Promotional SMS.	Service Implicit SMS sent through 6-character alpha Header. It should be approved in DLT platform.	Service Explicit SMS can be sent via 6-character alpha Header. It should be approved in DLT platform	Transactional SMS can be sent via 6-character alpha Header. It should be approved in DLT platform

Quick-Start Roadmap

How to Send Bulk SMS Online

Below is the steps to send bulk sms online using SMSINDIAHUB platform.

1. Create Free Account

Create your free account with SMSINDIAHUB.

2. Choose Plan & Purchase

Choose the best plan and Purchase SMS credits.

3. Upload DLT Header & Template

Upload DLT approved Sender ID and SMS Template.

4. Add or Upload Contacts

Add or upload contacts OR you can directly copy paste contacts from Excel sheet.

5. Compose SMS Content

Compose your sms content in English or any other regional language.

6. Track Campaign Reports

Track bulk sms campaign real-time delivery reports and advanced campaign reports.

Comprehensive Answers

All Frequently Asked Questions

Click any question to view clear answers and technical guidance.

Q1 What is bulk SMS or bulk SMS Gateway?

‘Bulk SMS’ is a service provided by SMS Aggregators to businesses for promoting their products and services or want to send some informational text, alert, update, notifications, validation password (OTP).

Q2 What purpose Bulk SMS Can be used?

Bulk SMS can be used for promoting products & services, sending offers to the customers, informing special discount schemes to the customers etc.

Q3 Why businesses use bulk SMS services for promotional or transactional communication with clients.

Bulk SMS one of the quickest medium to reach millions of people in just few clicks. Bulk SMS Service you can use to send promotional and transactional content.

Q4 What is the difference between Promotional SMS, Service SMS OR Transactional SMS?

As per TRAI commercial communication preferences 2018, text bulk sms is classified into 3 category:

Promotional SMS: Used for marketing and offers to new or existing clients. Delivered to Non-DND only, 10 AM to 9 PM, numeric sender ID.
Service Implicit SMS: OTPs and alerts to registered users. 24x7 delivery to all numbers (DND + Non-DND), 6-char alpha header.
Service Explicit SMS: Marketing updates to existing customers with consent. 24x7 delivery via 6-char alpha header.
Transactional SMS: Exclusively for banks to send OTP and transactional account alerts. 24x7 to all numbers.

Q5 Why businesses, NGO, SME, Showroom, Banks etc use bulk SMS service for their businesses?

In today busy lifestyle bulk sms beat all channel of communication as compared to social media. Bulk sms open rate is 90 to 95% & businesses get quick response through bulk sms gateway. While on the other hand social media open rate is only 10% Bulk sms also viewed by the clients instantly as compared to social media messages.

Q6 How SMSINDIAHUB is India’s No. 1 bulk SMS service provider?

We offers cloud based web panel and robust API, best in class infrastructure & self–managed messaging platform with lot of amazing features like Scheduling, Live campaign tracking, Easy reports, upload contacts and much more. We also provide 2FA APIs to integrate SMS and Email with any application/CRM or web application.

Q7 What is DLT Registration ?

Distributed Ledger Technology (DLT) is a Blockchain-based registration system. This Ledger keeps track of all the records of transactions made by network participants. Where telemarketers need to be registered And Sign up with operators and users & resellers with operators but through Telemarketer Company.

Q8 How to Send bulk SMS online?

Below is the steps to send bulk sms online using SMSINDIAHUB platform:

Create your free account with SMSINDIAHUB
Choose the best plan and Purchase SMS credits
Upload DLT approved Sender ID and SMS Template
Add or upload contacts OR you can directly copy paste contacts from Excel sheet.
Compose your sms content in English or any other regional language.
Track bulk sms campaign real-time delivery reports and advanced campaign reports.

Q9 What is the cost of bulk SMS Service?

Our bulk SMS software is completely free to use, you have to pay only for the (service) texts that you want to send. You can purchase SMS credits online/offline and use these credits to send both promotional and transactional sms. 1sms credit = 1sms. Bulk sms in English allowed 160 characters including space and Bulk sms in regional language allowed 70 characters including space.

Important Notice: Beware of low cost bulk sms service provided by some sms provider by compromising their service through low delivery ratio and fake sms delivery reports.

Q10 How to send WhatsApp sms through API?

We provide Whatsapp sms that can be integrated through API’s in your web application or software. Whatsapp sms will deliver from your own whatsapp activated mobile number. Whatsapp plays an important role in digital communication worldwide. Here users receive messages & send reply instantly within seconds. It’s a two way communication.

Q11 How to Receive SMS online?

Using our Short code and Long code features you can receive sms online in our sms portal. You can check incoming sms report & download in excel format from our portal. Miss call services also give you one more option to receive lead online.

Client Success

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"Wonderful experience with sms India hub services are up to the mark and also the bulk sms feature is best to grow sales and maintain relationships with customers happy to have you sms India hub"

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Frequently Asked Questions

Difference Between SMS Routes