Key Takeaways
- Scenario 1000 is a pep-rally gym-swap failover: 13:10 Gym A blast, spare already hot. Not intern doors, orchestra call times, or science-fair judging.
- A primary that dies at 13:08 with a cold spare is a hallway of students walking into the wrong gym.
- Do not SMS student names or squad lists. Gym nickname + ticket only.
- PTA promo stays on another device so ops traffic is not starved.
- 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 1000 is an activities desk. The pep rally moves to Gym A at 13:10. The spare is already signed in. Intern Door 3 blasts are the wrong list.
Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Multi-device failover · Developer Center. GSMA.
Pep rally, not intern
One blast, two devices. Map the send to the rally ticket, not a career-van door.
If the spare was still in the AD office, students packed Gym B and the rally started late.
Ops vs PTA blast
| Lane | Body | Failover | Device |
|---|---|---|---|
| Gym swap | Gym A + ticket | Spare hot | Ops pair |
| PTA | Promo | — | Marketing pool |
| Names / squads | Do not SMS | — | — |
Caps: 2 / 5 / 15.
Never SMS student names
SIS only. Failover. REST: PHP, C#. MCP wraps REST.
Gym code only
Gym A and ticket. No legal names, no squad lists.
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.
Spare already hot
Signed in, charged, same SIM class. Doze · Setup.
Ticket ids
Log ticket + send id, not names in chat. Rotate keys. Not a CodeCanyon school pack.
Failover or hold doors
If both radios fail, hold the gym doors. Do not post a roster on a parent group chat.
Checklist
- Spare signed in overnight.
- No names in templates.
- PTA on another device.
- Health check before 12:50.
- Both modems charging.
Next steps
Kill the primary on a staff blast; prove the spare takes 13:10 and never leaks a name. 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
