Key Takeaways
- Scenario 800 is custom-domain onboarding: IT texts TXT? when DNS will not verify. That inbox is not 2FA.
- Never SMS the verification token. Point them at the portal; tickets carry tenant id.
- Seat-invite JOIN and SSO SAML queues are different products. Do not collapse keywords onto one confused bot.
- Print the number only if someone watches Friday go-lives.
- 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 800 is a SaaS that lets tenants hang a custom domain. The printed MSISDN is for “TXT not seen after 24h,” CNAME confusion, and “email from our domain still fails.” It is not end-user OTP, not seat-invite JOIN, and not SAML cert rollover.
Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Two-way · Developer Center. GSMA.
TXT record is a ticket
Outbound “add this record in your DNS host” should carry tenant id so a bare “still pending” routes. ACK in business hours. STOP is setup-nudge opt-out, not account delete.
If you SMS the verification string, it will appear in a contractor group chat before the record does.
DNS help vs login OTP
| Lane | Audience | Device | Auto-reply |
|---|---|---|---|
| User 2FA | End users | Auth Android | Off |
| Domain verify | Tenant IT | Onboarding Android | ACK + ticket |
| Lifecycle promo | Buyer | Other MSISDN | STOP |
Caps: Starter 2, Professional 5, Business 15.
TXT / MX / HUMAN
Separate queues. HUMAN pages on-call on go-live Friday. STOP.
Do not SMS the token
Portal deep link only. Webhook signatures. REST: PHP, C#. MCP wraps REST. Webhooks.
Devices and volume
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. Replies meter platform volume; airtime is yours. Pricing.
Go-live Friday
Watcher named. Spare charged. Doze exempt. Setup.
Domain takeover
Tickets prove the admin is on the tenant. Do not walk a stranger through TXT for a domain you have not bound. Rotate keys. Not a CodeCanyon DNS plugin.
In-app checklist only
Skip SMS if you will not staff the inbox. Keep it when a local number unblocks IT admins who live in SMS.
Checklist
- DNS inbox ≠ OTP SIM.
- No token in SMS bodies.
- Tenant id on outbound.
- HUMAN pages Friday on-call.
- Webhook signatures verified.
Next steps
Text TXT? from a staff admin SIM; confirm a ticket without a token in the thread. Downloads · Docs.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- two-way SMS inboxReplies on your SIM
- OTP and 2FA SMS on AndroidAuthentication flows
- SMS webhook integrationInbound and status events
- SMS auto-reply and STOP keywordsOpt-out and keywords





