Key Takeaways
- Scenario 183 is container chassis-flip dual-SIM — not yard-jockey spots, mailbags, motorcycle hops, grain dumps, livestock rest, oversize escorts, RO-RO ramps, returns inbound, air-cargo ULD, rail-ramp, hazmat placards, cross-dock transload, bonded customs, empty-container pickup, reefer dwell, milk-run, parcel lockers, propane, snowplow, barge, or dairy tankers.
- “Chassis CH-4 ready — pin 12, 14:20” is transactional. “Book extra chassis week” is marketing. Split SIMs.
- Dashboard OTP stays on a dedicated Android. A Saturday flip pile will starve it.
- Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Free is 1 / 300 / 300. Developer is 25,000 SMS per year.
- Idempotent on chassis id + pin hour. Radio retries still spend operator credit.
- REST send fields live in Developer Center — not a CodeCanyon chassis plugin. MCP, if you use it, is only a REST wrapper.
Summary
Scenario 183 is logistics dual-SIM for container chassis flips. The yard owns the pin. SIM A texts the driver a chassis id and a clock. Priced by devices and SMS send volume. You use your own phone and operator SMS credit.
If the pin number changes mid-flip, the driver treats the next ping as spam — and you lose the only clock that matches the wheels.
Chassis-flip window
Keep SIM A on the live pin radio. Dual-SIM routing · logistics guide. Fields: Developer Center. Industry notes: GSMA.
SIM map
| Lane | Payload | SIM | Do not |
|---|---|---|---|
| Driver / chassis | CH id, pin, clock | SIM A (stable From) | Rotate MSISDN mid-flip |
| Chassis promo | Extra week upsell | SIM B / promo | Ride the pin inbox |
| TOS login | OTP | Dedicated OTP phone | Share SIM A |
Same From on the pin
Keep the pin number stable so drivers recognize the chassis ping. Idempotent send. DLR ≠ flipped — DLR.
Cost
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. Paid plans uncap platform volume; devices still meter. Pricing.
Ops
Spare radio before a Saturday flip pile. Doze · setup.
Security
Do not SMS the full chassis board. Trust Center · OTP. Promo STOP off the pin inbox. STOP.
Checklist
- SIM A vs B labeled.
- Idempotency on chassis + pin hour.
- OTP isolated.
- No full chassis list on SMS.
- Airtime for Saturday flips.
Next steps
Transactional SMS · SMS API documentation.
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
- transactional SMS for orders and alertsEvent-driven messages
- SMS delivery reports (DLR)Delivery status tracking
- SMS API documentationLive endpoint reference
