Knowledge base

Whatsapp Sms Gateway Webhook: In-Depth Guide

Featured illustration for Whatsapp Sms Gateway Webhook: In-Depth Guide

Whatsapp Sms Gateway Webhook: In-Depth Guide. Long-tail article focused on exact query "whatsapp sms gateway webhook". Expand with examples, limits, FAQ, and links to hub K. Priced by devices and SMS send volume; BYO phone and operator credit. Developer Center owns live API parameters.

Written by the SMS Gateway team for operators who run phones and airtime themselves — not for theoretical cloud SMS demos.

InformationAndroid SMS GatewayIn-DepthHub K
Article
Published
March 22, 2026
Updated
May 2, 2026
Reading time
16 minute read

Key Takeaways

  • WhatsApp SMS gateway webhook searches usually need two answers: SMS DLR/inbound webhooks from an Android gateway, and Meta Cloud/BSP webhooks for WhatsApp.
  • Do not verify WhatsApp signatures with SMS secrets (or vice versa).
  • SMS webhooks: REST callbacks, signed, queued — accept ≠ delivered.
  • Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Free is 300 SMS lifetime on the SMS path.
  • Never log OTP bodies from either webhook stream.
  • Confirm SMS fields in Developer Center; WhatsApp fields in Meta docs.

Summary

This guide splits WhatsApp SMS gateway webhook intent into SMS gateway callbacks versus WhatsApp Business webhooks. Keep stacks isolated. Priced by devices and SMS send volume. You use your own phone and operator SMS credit.

One shared /webhook that “handles everything” is how you forge DLR on the wrong channel and page the wrong on-call.

Two webhook worlds

Android SMS gateways post DLR/inbound over HTTPS to your app. WhatsApp Cloud/BSP posts message status and inbound chat events under Meta’s schemes. Overview: WhatsApp SMS gateway.

Webhook comparison table

ConcernAndroid SMSWhatsApp Business
AuthGateway signature / secretMeta app secret / validation
EventsDLR, inbound SMSStatuses, inbound chats
DocsDeveloper CenterMeta WhatsApp docs
OTP hygieneRedact bodiesRedact bodies

Android SMS webhooks

Sign, ack fast, queue work. Product page: webhook integration. Fields: SMS API documentation. Pair phones via setup.

WhatsApp webhooks

Follow WhatsApp Business Platform for subscribe fields and verification challenges — do not reuse SMS middleware blindly.

Security

Separate secrets, TLS, idempotent handlers, no OTP in logs for either lane.

Cost

SMS path Free is 300 SMS lifetime; WhatsApp fees are Meta/BSP. See SMS pricing.

Checklist

  • Two endpoints; two secrets; two dashboards for failures.
  • SMS accept ≠ delivered encoded in domain model.
  • Canary both channels independently if dual-running.

Next steps

Read the WhatsApp vs SMS pre-launch checklist before mixing traffic.

Related product pages

Jump to the live product docs for this topic—not another long-form article.

FAQ

Frequently asked questions

Direct answers about whatsapp sms gateway webhook.

Are WhatsApp and Android SMS webhooks the same endpoint?

They should not be. Different payloads, signatures, and retry semantics. Use separate routes and secrets.

Does an SMS webhook prove WhatsApp delivery?

No. Different networks entirely.

Does the SMS gateway include carrier credit?

No. You bring phone and operator airtime. Service pricing is devices plus SMS send volume.
Keep learning

Related articles

Topically related guides—chosen by subject overlap, not a fixed sitewide footer.

Information
best whatsapp sms gateway for developers

Best Whatsapp Sms Gateway For Developers: In-Depth Guide

Best Whatsapp Sms Gateway For Developers: In-Depth Guide. Long-tail article focused on exact query "best whatsapp sms gateway for developers". Expand with examples, limits, FAQ, and links to hub K. Priced by devices and SMS send volume; BYO phone and operator credit. Developer Center owns live API parameters.

Oct 2, 202516 min
Read article
Information
how to set up whatsapp sms gateway

How To Set Up Whatsapp Sms Gateway: In-Depth Guide

How To Set Up Whatsapp Sms Gateway: In-Depth Guide. Long-tail article focused on exact query "how to set up whatsapp sms gateway". Expand with examples, limits, FAQ, and links to hub K. Priced by devices and SMS send volume; BYO phone and operator credit. Developer Center owns live API parameters.

May 4, 202516 min
Read article
Information
whatsapp business api vs android sms gateway

Whatsapp Business Api Vs Android Sms Gateway: In-Depth Guide

Whatsapp Business Api Vs Android Sms Gateway: In-Depth Guide. Long-tail article focused on exact query "whatsapp business api vs android sms gateway". Expand with examples, limits, FAQ, and links to hub K. Priced by devices and SMS send volume; BYO phone and operator credit. Developer Center owns live API parameters.

Jan 7, 202616 min
Read article
Information
whatsapp sms gateway delivery reports

Whatsapp Sms Gateway Delivery Reports: In-Depth Guide

Whatsapp Sms Gateway Delivery Reports: In-Depth Guide. Long-tail article focused on exact query "whatsapp sms gateway delivery reports". Expand with examples, limits, FAQ, and links to hub K. Priced by devices and SMS send volume; BYO phone and operator credit. Developer Center owns live API parameters.

Aug 4, 202616 min
Read article

Browse the full Android SMS gateway knowledge base or return to how an Android SMS gateway works.

Get started

Test the gateway on your own Android phone

Install the app, pair one device, and validate your API flow before choosing a paid plan.

You supply the phone, SIM, and operator SMS credit.

Download the Android appView pricing