SMSGatewayHub FAQ & Help Center

Sign up on the SMSGatewayHub registration page with your business name, email and mobile number, then verify your number. New accounts get 1,000 free SMS credits to test delivery speed, reports and the API before buying anything. For a guided walkthrough, book a demo with our team.

Complete DLT registration, get your Sender ID (header) and message templates approved, and map them in your SMSGatewayHub panel. Then upload your contacts, pick the approved template and send. Track the result in live delivery reports.

One account covers bulk SMS, OTP SMS, WhatsApp Business API, RCS messaging, voice SMS, missed call, 2-way SMS and bulk email. You manage campaigns, credits and reports from a single dashboard and integrate everything through one API key.

No. You can send campaigns from the web panel by uploading an Excel or CSV file, or use the Excel plugin and desktop application. Developers who want to automate messages can use the SMS API.

Account setup and API integration usually take minutes; the main wait is DLT approval of your entity, headers and templates on the operator portal. Once approved, you map them in SMSGatewayHub and start sending the same day. If you need help with approvals, see DLT priority support.

SMSGatewayHub uses Pay As You Go pricing: you buy credits as you need them, with no monthly lock-in. Rates depend on the channel, route and volume, so larger volumes cost less per message. See the pricing page or call sales on 1800 102 1822 for a quote.

Yes, SMSGatewayHub offers billing where you pay only for delivered SMS, so failed messages do not eat into your budget. Check each message's final status in live delivery reports or through the API.

Yes. Prices are exclusive of 18% GST unless stated otherwise, and you receive a GST invoice for every purchase. Add your GSTIN to your account profile so it appears on invoices; payment details are on the bank details page.

Log in and buy credits online from the panel, or pay by bank transfer using the details on the bank details page and share the payment reference with our accounts team. For volume quotes, contact sales.

No. SMSGatewayHub publishes its approach in the fair pricing policy: Pay As You Go credits, clear GST invoices and no setup fee on standard SMS accounts. Operator-side fees such as DLT registration are paid directly to the operator portal, not to us.

DLT (Distributed Ledger Technology) is the TRAI-mandated system on which every business sending commercial SMS in India must register its entity, Sender IDs (headers) and message templates. Operators block messages that do not match a registered header and template. SMSGatewayHub guides you through DLT registration and maps your approvals in the panel.

Under TRAI's amended TCCCPR rules, operators add a suffix to every header so recipients can see the message type: -P promotional, -S service, -T transactional and -G government. For example, a service message from header ABCDEF appears as XX-ABCDEF-S. The suffix is added automatically from your template category; see Sender ID rules.

Use transactional only for messages triggered by the customer's own transaction and sent within 30 minutes, such as an OTP or payment confirmation. Use service for updates to existing customers, such as order, delivery or appointment alerts, with no promotional content. Anything that markets a product or offer is promotional. More detail is in the DLT template registration guide.

Service Explicit is no longer a separate live category: TRAI's amended rules moved consent-based service messages into the promotional group, so they carry the -P suffix and follow promotional rules. If you still have Service Explicit templates, review them on your DLT portal. Read our Service Explicit vs Service Implicit guide for the background.

Variables must now be typed, for example {#numeric#} for OTPs and amounts, {#alphanumeric#} for order IDs or names, {#url#}, {#urlott#}, {#cbn#} for call-back numbers and {#email#}. Keep most of the template fixed text and use only the variables you need. See sample templates and our variable tagging update.

Yes. URLs, APK links, OTT links and call-back numbers in your templates must be whitelisted on your DLT portal, otherwise operators block the message. Use your own branded domain instead of public URL shorteners. If messages fail after an approval, check the DLT error codes and solutions.

The registration fee is set and collected by the DLT operator portal (such as Jio, Airtel, Vi, BSNL or Smartping), not by SMSGatewayHub. We do not add a fee for basic DLT guidance; faster hands-on help is available through DLT priority support.

Bulk SMS lets a business send one message to many mobile numbers at once from a single platform, for alerts, reminders, OTPs and offers. SMSGatewayHub's bulk SMS service delivers through Indian operator networks, typically within 2 to 6 seconds, with a 99.9% uptime SLA.

Transactional SMS (-T) is triggered by a customer's own transaction and sent within 30 minutes. Service SMS (-S) carries updates to existing customers and reaches DND numbers 24x7. Promotional SMS (-P) markets offers and is limited by time window, DND and consent rules.

If your template is in the promotional category, which now includes old Service Explicit templates, operators hold it to the 10 AM to 9 PM window and block DND numbers. Informational messages such as order updates should use a service template, and OTPs a transactional or service template, which deliver 24x7. Check your template category on the DLT portal or read how to send SMS to DND numbers.

Yes. SMSGatewayHub supports Unicode SMS in Hindi, Marathi, Tamil, Telugu, Bengali, Gujarati, Punjabi and other Indian languages. A Unicode SMS holds fewer characters per part than English, so longer messages use more credits.

The most common causes are a template mismatch, an unapproved or unmapped header, the wrong variable type, a non-whitelisted link, a promotional message to a DND number or outside 10 AM to 9 PM, and invalid or switched-off numbers. Check the error in delivery reports and the DLT error code guide.

An OTP SMS service sends one-time passwords for sign-up, login and payment verification. SMSGatewayHub's OTP SMS service delivers 24x7, including to DND numbers, through an API built for high-priority traffic.

An OTP sent within 30 minutes of a customer's own action, such as a login or payment, fits the transactional (-T) definition; many businesses register OTPs as service (-S) templates. Both deliver to DND numbers around the clock. Never mix promotional text into an OTP template, or it is treated as promotional. See the OTP messaging guide.

Delays usually come from the recipient's network, a switched-off or out-of-coverage phone, dual-SIM settings, a template mismatch or an unwhitelisted link in the message. Check the message status in live delivery reports and see why OTPs are not received. Offering a voice or missed call fallback helps users in weak-signal areas.

Missed call OTP verifies a phone number without sending a code: the user calls a number shown in your app, the call is cut automatically and the caller ID confirms the number. The caller is not charged, and no SMS template is needed for the verification step.

Yes. A voice OTP reads the code out in an automated call, which helps users who cannot receive SMS. SMSGatewayHub offers voice OTP alongside voice SMS; see voice OTP options.

From 1 October 2026, Meta charges per message for non-template service replies sent inside the 24-hour customer service window, which used to be free. Utility templates sent inside that window are also charged now. Inbound customer messages and the 72-hour free entry point window from Click-to-WhatsApp ads stay free. Read our guide to the service message pricing change.

Meta charges per delivered message. Marketing, utility and authentication templates are each priced by category and the recipient's country, and since 1 October 2026 service replies are charged too, at the same rate as utility messages in that market. SMSGatewayHub bills this on Pay As You Go; see WhatsApp pricing.

When a customer messages you, a 24-hour window opens in which you can reply with free-form, non-template messages; each new customer message resets it. Outside the window you can only start a conversation with an approved template. Since 1 October 2026 replies inside the window are billed per message, so automate wisely with the WhatsApp Business API.

Yes. Messages your customers send you are free, and when a customer reaches you through a Click-to-WhatsApp ad or a Facebook Page call-to-action button, all your messages in the following 72-hour free entry point window carry no Meta delivery charge. Meta Business Agent (AI) replies are billed separately. Plan campaigns with SMSGatewayHub WhatsApp.

Meta approves templates in three categories: marketing for offers and promotions, utility for updates linked to a transaction or account, and authentication for one-time passcodes. Meta can re-categorise a template that does not match its category, which changes how it is billed. Build and submit templates from the WhatsApp Business API dashboard.

Yes. Meta limits how many marketing templates a single user receives from businesses in a period, so some marketing messages may not be delivered to people who already received many. Your phone number also has a messaging limit that rises as quality stays high. Read how to broadcast on WhatsApp without getting blocked.

Yes. Meta requires a clear opt-in naming your business before you start a conversation with a template, and you must honour opt-out requests. You can collect consent on web forms, at checkout, by QR code or through a missed call to WhatsApp flow.

RCS Business Messaging (RBM) sends rich messages from a verified brand agent, showing your name and logo, straight to the customer's default Messages app. Messages can carry images, rich cards, carousels, suggested replies and action buttons, with no app download. SMSGatewayHub offers RCS messaging in India with SMS fallback.

SMS is plain text from a 6-character header. RCS adds a verified sender, media, buttons, carousels and read receipts, so it suits product showcases and interactive journeys. Read RCS vs SMS or start with SMSGatewayHub RCS.

Support depends on the operator and the iPhone's software. Jio began enabling RCS business messages on iPhones in September 2026, while Airtel and Vi are expected to follow; Android phones with Google Messages are supported across operators. SMSGatewayHub's automatic SMS fallback covers devices that cannot receive RCS.

Yes. Under Google's RBM rules for India, businesses can start promotional conversations only between 7 AM and 10 PM, and each user can receive only a limited number of messages over 28 days depending on the agent's reputation. Replies to messages the customer started are exempt. See RBM policies for India.

RCS agents are verified through the brand verification and launch process for RBM. Any SMS sent as fallback is normal business SMS, so it still needs DLT registration, an approved header and templates. SMSGatewayHub helps you set up both on one account.

Voice SMS delivers a pre-recorded or text-to-speech message as an automated call to mobile and landline numbers. It works in Hindi, English and many regional languages, so it reaches people who do not read SMS. Common uses are reminders, alerts, election and awareness campaigns; see voice call use cases.

Under TRAI's rules, promotional voice calls must come from the 140 number series and service or transactional calls from the 1600 series, so people can recognise them. Promotional calls follow the same DND and consent rules as promotional SMS. Plan compliant campaigns with SMSGatewayHub voice SMS.

A cloud IVR answers incoming calls with a menu, such as press 1 for sales and 2 for support, and routes callers to the right team without hardware. SMSGatewayHub's IVR supports multi-level menus, DTMF input, call recording and reports. Read more about interactive voice response.

Request a toll-free number from SMSGatewayHub, submit the business documents required, and choose how calls should be routed through the IVR. Callers pay nothing, and you get call recording, agent-wise reports and a web control panel.

Yes. With DTMF input, listeners can press a key to confirm, cancel or request a call back, and the response is captured in your reports. This is useful for COD confirmation, appointment confirmation and feedback; see voice SMS and cloud IVR.

A missed call service gives you a number that people call to register interest; the call disconnects automatically, so it is free for the caller. Each call is captured as a lead and can trigger an auto-reply SMS. It works well on ads, packaging and posters.

2-way SMS lets customers reply to or text your business number with a keyword. SMSGatewayHub routes incoming messages to a keyword inbox, sends an auto-reply and can forward them to email, a URL or a mobile number. It is used for opt-ins, surveys, contests and lead capture.

A shared long code is a 10-digit number used by several businesses, each with its own keyword. A dedicated long code is your own number with unlimited keywords and sub-keywords. Compare them on shared vs dedicated long code or see dedicated long code services.

56161 is SMSGatewayHub's 5-digit premium short code. You get a keyword on it; when a customer texts that keyword to 56161, they receive your auto-reply and the lead appears in your reports, with unlimited sub-keywords and optional URL or email forwarding.

Yes. With missed call to WhatsApp auto-reply, a caller who gives a missed call can receive an approved WhatsApp message, which is a simple way to collect WhatsApp opt-ins from offline ads. Remember that WhatsApp messages are billed by Meta per message.

Yes. SMSGatewayHub's bulk email service sends newsletters, offers, order confirmations and OTP emails with real-time open, click, bounce and unsubscribe reports. It runs from the same account as your SMS and WhatsApp messaging; see bulk email pricing for Pay As You Go options.

Senders who mail these providers in volume must authenticate their domain with SPF and DKIM, publish a DMARC policy aligned with the From domain, offer one-click unsubscribe on marketing mail and keep spam complaints below 0.3%. Mail that fails these checks can go to spam or be rejected. SMSGatewayHub's bulk email setup helps you meet them.

One-click unsubscribe adds a standard header so mailbox providers can show an unsubscribe button next to your sender name. Gmail and Yahoo require it on bulk marketing email and expect requests to be honoured within two days. Keep a visible unsubscribe link in the email body as well; learn more in choosing a bulk email platform.

Use the same API key you use for SMS: the SMSGatewayHub developer API includes an Email API for transactional and promotional email. Any language that can make HTTP requests, such as PHP, Python, Node.js or Java, can send email and fetch delivery reports.

Many applications send mail through an SMTP server instead of an API. Read getting started with an SMTP server and contact our team for SMTP setup on your SMSGatewayHub email account. Whichever method you use, authenticate your sending domain first.

Start with the developer API page, which covers bulk SMS, OTP, WhatsApp, voice, RCS and email APIs with sample requests and a live tester. Interactive reference docs are on Swagger. Code samples are in PHP and Python guides.

You can send messages with simple HTTP GET or HTTPS requests, or POST JSON and XML, all authenticated with your API key. Responses return an error code, a job ID and a message ID for each number, which you use to fetch delivery status.

The SMPP API suits resellers, aggregators and enterprises sending very high volumes over a persistent connection, with delivery receipts on the same session. Most websites and apps are well served by the HTTPS API. See SMPP connectivity for credentials and setup.

Call the delivery report API with the job ID, or configure webhooks so SMSGatewayHub pushes status updates to your server in real time. Read how webhooks work and see the delivery report states.

Yes. The WordPress and WooCommerce SMS plugin sends order alerts and notifications from your store; setup steps are in the WooCommerce plugin guide. Other add-ons are listed on SMS add-ons.

Error code 7 means the login details in your API request are wrong. Check that you are calling the correct SMSGatewayHub URL, that the username matches your registered login, and that the APIKey matches an active key in your panel. More fixes are in common API errors.

Yes. SMSGatewayHub's international SMS service delivers to mobile numbers in many countries from the same panel and API. Enter numbers in full international format with the country code. See international SMS pricing for Pay As You Go rates by country.

DLT applies to commercial SMS delivered to Indian numbers. Messages to numbers outside India follow the destination country's rules instead, which may include Sender ID registration. Your DLT registration is still needed for any domestic traffic on the same account.

It depends on the destination country: some show an alphanumeric Sender ID, some require it to be registered in advance, and some replace it with a numeric sender. Ask our team about the countries you target before launching an international campaign, or read about Sender IDs.

Use the international channel in the SMS API (channel=INT) and pass numbers with their country code. Delivery reports work the same way as for domestic SMS.

Businesses use it for OTPs to overseas users, alerts to NRI customers, travel and booking updates, and notifications for global SaaS users. Read sending messages globally from one platform or explore international SMS.

Yes. SMSGatewayHub holds ISO 27001 for information security and ISO 9001:2015 for quality management, has SOC 2 attestation and runs regular VAPT (vulnerability assessment and penetration testing). Details and documents are in the Trust Center and on the ISO certification page.

API traffic runs over SSL/TLS, access uses unique API keys, and you can restrict API use to approved server IPs with IP whitelisting. See our security approach for more on how data is handled.

Yes. SMSGatewayHub is TRAI DLT registered and sends only through registered headers and approved templates, so your traffic follows the current rules. Our team helps you with DLT registration and template categories.

India's Digital Personal Data Protection Act, 2023 requires businesses to collect personal data such as phone numbers for a clear purpose, with valid consent or another lawful basis, and to honour withdrawal of consent. As your messaging provider, SMSGatewayHub processes contact data on your instructions. See our privacy policy and Trust Center; take legal advice for your own obligations.

Yes. Enterprises can request certificates, security questionnaires and VAPT summaries for vendor due diligence through the Trust Center or by contacting our team.

Yes. The bulk SMS reseller program gives you a white-label panel with your own brand, so you can create client accounts, assign credits and set your own pricing. High-volume partners can also connect over the SMPP API.

The affiliate programme lets you earn by referring businesses to SMSGatewayHub without managing accounts yourself. It suits consultants, agencies and developers; if you want to manage clients and billing yourself, choose the reseller program instead.

Call sales on toll-free 1800 102 1822, or accounts and technical support on +91 99079 22122, or email info@smsgatewayhub.com. All contact options, including DLT support, are on the contact page.

User guides, the reseller guide, the SMPP SOP and other documents are available on the downloads page. Video walkthroughs are on the video page.

Yes. Your DLT entity, headers and templates stay valid, so switching mainly means mapping them in SMSGatewayHub and updating your API endpoint. Our team helps with migration; compare options on MSG91 alternative or talk to sales.