Android SMS Gateway Scenario 126: Real-estate scheduled SMS in practice

Summary

Scenario 126 schedules completion-week SMS from Android SIMs on the development, not a sales-board nurture drip. Service pricing is based on device count and total SMS sent through the gateway. You need a working Android phone with a SIM and SMS credit from your mobile operator. Operator message costs are yours—we do not sell carrier SMS balance.

If legal completion slips at 22:00 and the 09:00 key text still fires, you have a cron, not a completions programme.

You keep the cabin MSISDN. Aggregators rent numbers — Twilio vs Android SMS gateway.

Key takeaways

• Scenario 126 is new-build completions: snagging, key collection, aftercare — all on the plot’s clock.
• Solicitor / buyer-portal OTP stays off the “site open Saturday” blast SIM.
• Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Free is 300 SMS lifetime, 1 device.
• A slipped legal completion must kill the 09:00 key text before buyers drive to an empty cabin.
• Aftercare upsells are promotional. Access codes are not a marketing footer.
• Spare radio at the sales cabin beats a brochure SLA when site 4G dies.

Related reading

scheduled SMS, SMS auto-reply and STOP keywords, OTP and 2FA SMS, FCC unwanted-text guidance.

Context

New-build desks juggle solicitors, snag lists, and key cabins with bad 4G. The failure is a phone in a site manager’s van at 08:50, not “the API.”

Free (300 SMS lifetime, 300 contacts) is one plot’s canary.

Core scenario guidance

Store IANA zone on the development. Tie jobs to legal_completion_id. Drain access texts when funds or keys slip.

Aftercare warranties are promotional. Lockbox codes go only to the completing buyer, never a scraped reservation list.

Completion week lanes

Cost and ownership

Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Name who tops up the cabin SIM on Friday. Retries still spend airtime.

A second phase is another device if it needs its own radio at 09:00.

Operations

08:30: pairing, battery, legal flags vs tomorrow’s key jobs. After OEM updates, canary at a real slot.

Abort: pause aftercare, keep portal OTP, drain slipped completions.

Security and compliance

No full lockbox strings to a list. Rotate keys when a contractor CRM zap dies. STOP on aftercare.

OTP bodies out of site WhatsApp groups.

Decision guide

Ship when legal slip drains key texts. Delay if “completion week” is a spreadsheet column with no zone. If the cabin cannot host a phone, CPaaS for OTP and honesty about reminder delay.

Checklist

• Plot IANA zone stored.
• Jobs keyed to legal_completion_id.
• Slip drains 09:00 key SMS.
• OTP off site-day SIM.
• STOP on aftercare.
• Spare charged in the cabin.
• Staff canary at a real hour.
• Friday airtime.
• On-call for first key slot.
• Developer Center if API-enqueued.

Next steps

See scheduled SMS, device and SMS volume pricing, SMS API documentation.

Deep dive: production hardening

Van-pocket phones sleep. Cabin charge only.

Dual-SIM remap: solicitor OTP must not hop to show-home promo.

Site MMS of snags fails APNs. Use a ticket link.

No auto-reply upsell into a 2FA thread.

Deep dive: scaling and failure modes

Multi-phase sites scale by device count. Uncapped platform volume is not extra 09:00 radios.

A released phase is an OTP spike plus a promo CSV. Hold aftercare; keep portal codes.

Starter, Professional, and Business list Unlimited SMS as platform send volume; that is not unmetered carrier SMS. Free and Developer cap SMS.

Deep dive: integration discipline

Idempotency on completion_id + offset. Case-management retries are normal.

Feature-flag aftercare copy. Canary completing buyers only.

Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Developer Center owns fields.

Key-day morning

08:30: kill jobs whose legal flag flipped overnight.

08:50: pairing + airtime. Red means page before the first buyer drives.

Abort: pause aftercare, keep OTP, drain slips. If sales can still blast the reservation list, you have no schedule.