Key Takeaways
- Scenario 1590 is a lockbox / key-safe code-rotate window SMS. A carrier slip is not a new code live — not short-sale bidder close, parking lottery, or recert.
- A tech who flips after “we sent” leaves showing agents with yesterday’s digits.
- Do not SMS the new code or the address. Box id, window, and how to cancel.
- 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 1590 is a listing-ops desk. Agents get “key-safe rotate tomorrow 10:00 — check portal.” T-14h DLR decides whether that box flips. Bidder windows and parking stickers are the wrong list.
Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Scheduled SMS · Developer Center. GSMA.
Key-safe rotate, not a bid
Schedule T-14h window SMS. Map DLR to the box id. 09:40 is an undelivered list, not a showing funnel.
If 16 were “sent” and 3 never delivered, you flipped three boxes agents still could not open.
Rotate SMS vs portal OTP
| Lane | Body | Schedule use | Device |
|---|---|---|---|
| Window / cancel | Box, hours | 09:40 hold | Ops modem |
| Portal OTP | Digits | Auth | Dedicated |
| Code / address | Do not SMS | — | — |
Caps: 2 / 5 / 15.
Slip is not the new code
One retry, then call. Deliverability. REST: PHP, C#. MCP wraps REST.
No codes in SMS
Box id and hours only. Confirm identity on inbound LATE.
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.
09:40 site
Box ids
Log box + DLR, not the code in chat. Rotate keys. Not a CodeCanyon lockbox pack.
Hold or flip
If you will not act on undelivered, do not promise SMS rotate windows.
Checklist
- 09:40 undelivered owner.
- No codes in templates.
- OTP on another device.
- Webhook signatures.
- Night modem charging.
Next steps
Seed a bad number on a staff box; prove the code stays yesterday’s at 09:40. Downloads · Docs.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- scheduled SMS campaignsSend later windows
- transactional SMS for orders and alertsEvent-driven messages
- SMS auto-reply and STOP keywordsOpt-out and keywords
- SMS API documentationLive endpoint reference
