Key Takeaways
- Scenario 100 is a free-breakfast / meal-site move at 07:10: kitchen leak or boiler fail. Catering SIM dies under the parent spike — a spare already paired takes the rest. Not snow-day, fixture cancel, or exam-hall.
- Families who get silence will queue at a locked canteen. The product is the second radio.
- Do not SMS student names or eligibility in message 1. New site, door, and time.
- Staff portal OTP stays on another device.
- Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Free: 1 device / 300 SMS lifetime / 300 contacts. Developer: 25,000 SMS per year.
Android SMS gateway scenario 100 is a catering office when the canteen boiler fails at 06:40. Breakfast moves to the sports hall. Families need one text before 07:30. Snow closures and hall exams are the wrong list.
Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Failover · Developer Center. GSMA.
Meal site, not snow
Split year-groups across two device ids before send. Fail closed if both SIMs reject.
If you find the spare in a dry-store after the first two year-groups fail, you ran a car-park argument, not a meal move.
Breakfast vs LMS
| Lane | Body | Failover | Device |
|---|---|---|---|
| Site move | Hall, time | Split list | Kitchen + spare |
| LMS / exam | Code | Class modem | Separate |
| Staff portal OTP | Digits | Auth | Dedicated |
Caps: 2 / 5 / 15.
Spare already paired
Health-check both radios at 21:00 on watch nights. REST: PHP, C#. MCP wraps REST.
No student names
Site and time only. Identity on inbound if they reply WHICH DOOR.
Devices and airtime
Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Free: 300 lifetime. Developer: 25,000 SMS per year. Pricing.
07:10 blast
Kitchen SIMs
Log campaign id + device id, not eligibility in chat. Rotate keys. Not a CodeCanyon meals pack.
Two SIMs or a tannoy
If you will not keep a hot spare on kitchen-watch nights, do not promise SMS site moves.
Checklist
- Spare paired night before.
- List split before send.
- No names in templates.
- Staff OTP elsewhere.
- Webhook signatures.
Next steps
Kill the catering SIM mid-test list; prove the spare finishes the remainder. Downloads · Docs.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- multi-device and dual SIM routingCapacity and failover
- OTP and 2FA SMS on AndroidAuthentication flows
- SMS delivery reports (DLR)Delivery status tracking
- SMS API documentationLive endpoint reference
