Every code delivered.
Every alert on time.
WOCOM365 Transactional SMS delivers OTPs, order confirmations and account alerts on a dedicated, high-priority route — DLT-compliant, DND-exempt for consented transactions, with redundant carrier routing so delivery never depends on a single network.
The SMS route built for messages that can't wait
Transactional SMS is a category of SMS reserved for time-sensitive, non-marketing information tied to a service a customer has actively engaged with — a one-time password, an order confirmation, a delivery update, a password reset link. Because these messages are essential to completing an action the customer initiated, they're treated differently from promotional SMS by both telecom regulation and WOCOM365's infrastructure.
In India, that difference matters most around two things: DND exemption and delivery priority. Transactional messages to a customer with an active service relationship are exempt from the National DND registry, and WOCOM365 routes them through a dedicated high-priority gateway, separate from bulk promotional traffic, so an OTP or order alert doesn't get stuck in the same queue as a marketing blast.
Every transactional template is registered and approved under TRAI's DLT framework before it can send, and every message is routed across multiple redundant carrier connections so a single network hiccup never becomes a failed delivery.
One gateway, every message that matters right now
All three send through the same DLT-compliant, high-priority route and reporting dashboard.
OTP & Verification
Login codes, transaction authentication and identity verification, delivered in under two seconds on average.
Order & Account Alerts
Order confirmations, shipping updates, payment receipts and account activity notifications customers rely on.
Two-Way Confirmations
Let customers reply YES, STOP or a keyword to confirm appointments, cancel actions or opt out, tracked automatically.
From a system event to a delivered message, in seconds
Triggered automatically from the event that needs it — no manual sending, no delay.
Event triggers the API
A login, order, payment or account action in your system calls the WOCOM365 API.
Routed to the priority gateway
The message is sent through the dedicated transactional route, ahead of bulk traffic.
Template checked & sent
The DLT-approved template is validated and dispatched across redundant carrier routes.
Delivery confirmed & logged
A delivery report lands in your dashboard and CRM, typically within a couple of seconds.
Built for messages that are urgent by definition
Instant Priority Route
A dedicated gateway separate from promotional traffic, keeping delivery consistently fast.
DLT-Compliant Templates
Every template registered and approved under TRAI's DLT framework before it can send.
High Delivery Success Rate
99%+ delivery success backed by continuous route monitoring and failover.
Multi-Language Unicode Support
Send transactional alerts in English or regional Indian languages, without formatting issues.
Two-Way SMS Replies
Capture keyword replies like YES, STOP or CONFIRM and route them back into your workflow.
Real-Time Delivery Reports
See sent, delivered and failed status for every message as it happens, not after the fact.
Speed and reliability, when there's no room for either to slip
The fastest way to deliver a code that expires in minutes
An OTP that arrives late is worse than useless — it's a failed login, an abandoned checkout, a support ticket. Because transactional SMS runs on a dedicated priority route instead of sharing capacity with promotional campaigns, delivery stays fast and consistent even during traffic spikes elsewhere on the network.
- Median delivery under two seconds
- Never queued behind promotional traffic
- Consistent speed even during peak campaign periods
Redundant by design, so one network hiccup never becomes a failure
Flash sales, festival traffic and end-of-month billing cycles can push message volume far beyond a normal day. WOCOM365 routes transactional SMS across multiple carrier connections, automatically retrying through an alternate route the instant one shows congestion or failure, so delivery success stays high exactly when it matters most.
- Multiple redundant carrier routes per message
- Automatic retry on a failed or congested route
- Built to hold delivery rates during peak traffic events
Anywhere a customer is mid-action and needs a message now
From a login screen to a delivery doorstep, transactional SMS is the quiet infrastructure behind the moment.
BFSI
E-Commerce
Healthcare
Logistics
Education
Works with the tools your team already uses
Trigger transactional SMS directly from your app, CRM or order system, and log every delivery automatically.
- Event-based API triggers
- Delivery reports synced to CRM records
- API & webhook support for custom stacks
Built for India's SMS regulatory environment, not around it
Compliance and reliability aren't add-ons here — they're built into how every message is routed and sent.
DLT Registration Support
WOCOM365 manages sender ID and template registration under TRAI's DLT framework on your behalf.
Sender ID Management
Manage multiple branded sender IDs across products, teams or regions from a single account.
Redundant Carrier Routes
Every message can traverse multiple carrier connections, with automatic failover on congestion.
Rate Limiting & Throttling Control
Set send-rate rules per sender ID or template to stay within carrier and TRAI limits automatically.
Scheduled & Triggered Sending
Schedule sends in advance or trigger them the instant a qualifying system event fires.
API & SDK Library
REST API with SDKs and code samples across major languages for fast, reliable integration.
Delivery rates that hold up under real pressure
BFSI A bank achieved 99%+ OTP delivery success on transactional SMS +
Switching to WOCOM365's redundant transactional routes eliminated the delivery delays that were causing failed authentications and abandoned transactions during peak banking hours.
E-Commerce A retailer maintained delivery speed through a flash-sale traffic spike +
Order confirmation SMS held its normal delivery speed even during a 12x traffic spike on sale day, thanks to redundant routing and dedicated transactional priority.
Healthcare A hospital network reduced no-shows with two-way SMS confirmations +
Appointment reminders now ask patients to reply CONFIRM or RESCHEDULE, with responses routed automatically back into the scheduling system without staff intervention.
What businesses say
"OTP delivery failures used to be a daily support ticket. Since moving to WOCOM365, that's simply stopped being a conversation."
"Our sale-day order confirmations used to lag by minutes at peak traffic. Now they arrive just as fast as on a normal Tuesday."
"Two-way appointment confirmations cut our no-show rate more than any reminder call ever did, and it runs entirely on its own."
Frequently asked questions
What is transactional SMS and how is it different from promotional SMS?
Transactional SMS carries time-sensitive, non-marketing information a customer needs as part of a service they've engaged with, such as an OTP, an order confirmation or an account alert. Unlike promotional SMS, transactional messages are exempt from the National DND registry for customers with an active service relationship, and are routed with higher delivery priority.
Is transactional SMS exempt from DND blocking?
Yes, for genuinely transactional content sent to a customer with whom you have an active service relationship, such as OTPs, order updates and account alerts. Marketing content sent through the transactional route, however, can still violate regulations, so WOCOM365 enforces DLT template categorisation to keep every message compliant.
What is DLT registration and why does it matter for transactional SMS?
DLT (Distributed Ledger Technology) registration is a TRAI-mandated process that requires businesses to register their sender IDs and message templates before sending commercial SMS in India. WOCOM365 manages DLT registration and template approval on your behalf, so every transactional message is compliant before it's sent.
How fast is transactional SMS delivered?
Transactional SMS is routed through a dedicated, high-priority gateway separate from promotional traffic, typically delivering within a few seconds, which matters most for time-sensitive messages like OTPs that expire quickly.
What happens if an SMS fails to deliver on one carrier route?
WOCOM365 routes transactional SMS across multiple redundant carrier connections, automatically retrying through an alternate route if the first attempt fails, to maximise delivery success even during network congestion.
Can transactional SMS be sent in regional Indian languages?
Yes. WOCOM365 supports Unicode messaging for regional Indian languages alongside English, so transactional alerts can be sent in the language your customers actually read.
Ready for SMS delivery you don't have to think twice about?
Talk to a WOCOM365 specialist and get your transactional SMS route configured and DLT-compliant this week.