Key Takeaways
- OTP launch on a phone-as-SMS-gateway needs pairing, Doze, airtime, isolation, spare, and a staff canary.
- Free: 1 device / 300 SMS lifetime / 300 contacts.
- Link the phone hub; do not rewrite the overview.
- You bring the Android and operator credit. Platform pricing is devices plus send volume.
- Confirm live fields in Developer Center.
otp launch checklist for phone as gateway is radio readiness. Hub: Phone as SMS gateway. App checklist: Android app pre-launch. OTP: OTP. Live JSON: Developer Center.
Free: 1/300/300. Devices and send volume.
go / no-go
[ ] paired
[ ] airtime
[ ] spare
[ ] canary DLR
Phone-as-gateway OTP gates
Owners per gate. Canary before customers. setup.
A green pairing light with empty prepaid is not a launch — it is a countdown.
Launch checklist
| Gate | Pass | Fail |
|---|---|---|
| Official APK | Downloads build | Random marketplace APK |
| Doze / OEM | Exceptions set | Dies after screen-off |
| Airtime | Funded SIM | Zero prepaid |
| OTP isolation | Quiet device_id | Shared promo phone |
| Spare | Charged + paired | Cold spare |
| Canary | Staff delivered | Accepted only |
Panel green ≠ inbox
Spare before cutover
Incident response. Messaging practices.
Next steps
Check every gate with a name. Spend 300 lifetime SMS on canaries — then fund production.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- OTP and 2FA SMS on AndroidAuthentication flows
- SMS API documentationLive endpoint reference
- device and SMS volume pricingPlans and allowances
- Android SMS gateway product guideDefinition, product, and how to buy
