Key Takeaways
- A UST MMS is tank ID and sump crop — not a drone still of the whole forecourt.
- Regulator and owner are different lists. Do not reuse a roofing “job done” template.
- Free is 1 device, 300 SMS lifetime, and 300 contacts. Developer is 25,000 SMS per year. Platform price is devices plus send volume.
- Tech-app OTP stays off the station radio.
- Idempotency is tank-id plus ticket — weather recuts the same work order.
Summary
Scenario 1281 is field-service MMS for underground storage tank inspections — sump, ATG, spill bucket — not wind nacelles, not bridge cracks, not solar combiners, not roof shingles. The ticket closes when the cropped plate is readable. Service pricing is devices plus SMS send volume. You bring the phones and operator credit. Free is 1 device, 300 SMS lifetime, and 300 contacts.
Starter allows 2 devices: station dual-SIM plus a spare. Uncapped platform volume is not unlimited carrier SMS. Confirm MMS limits in Developer Center.
tank · sump · ticket
tank-id + ticket — weather recuts the WO
A tank photo is not a lot selfie
Close copy names tank-id and product. Roofing “we’re off the shingles” is a different trade. Mixing them on one purpose is how a regulator STOPs after an owner blast.
MMS gateway, transactional SMS.
If the tech sends the pump-island selfie as “complete,” the agency still has no sump crop. Crop the plate. Keep leak notes off the owner thread.
UST MMS matrix
| Shot | Audience | Failure |
|---|---|---|
| Sump crop | Regulator | Uncropped dump |
| Access | Owner | Leak notes leaked |
| Weather abort | Once | Hourly “still holding” |
| App OTP | Auth pool | OTP on the station radio |
Plate crop vs whole-lot dump
Persist tank-id plus ticket. Signed callbacks. Webhooks, DLR. MCP wraps REST only.
Spill response is not auto-reply
Auto-reply never grants a spill clearance. EPA UST and agency closeout stay in the ticket, not a STOP keyword.
Devices, volume, and airtime
Inspection weeks spike. We meter devices and platform sends. You pay the operator. Free (1/300/300) is one tank proof.
Station operations
Charge the chassis before the callout. Setup, Downloads, pricing.
Decision guide
Ship when regulator and owner lists are split. Delay if roofing templates close UST tickets. Not a CodeCanyon tank pack.
UST checklist
- Ticket-keyed idempotency.
- Cropped sump to regulator.
- Leak notes off owner SMS.
- OTP off station SIM.
- Developer Center fields confirmed.
Next steps
Scenario 1221 turbine, scenario 1161 bridge.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- MMS gateway on your own SIMMultimedia where supported
- two-way SMS inboxReplies on your SIM
- SMS API documentationLive endpoint reference
- PHP REST send samplesPHP code examples
