SMS

The SMS service gives the business two-way texting: customers text the number and the AI answers; workflows and campaigns text out. The single highest-value use is speed to lead — a form submission or missed call gets a text within seconds, while the customer is still deciding.

A2P registration (required)

US carriers require every business texting from an application to register (A2P 10DLC). Untracked traffic gets filtered — messages silently vanish. OpenAgent runs the registration for you:

1. 1
   Fill in the business profile

   Legal name, EIN, address, website, and how customers opt in. The service's Compliance page lists exactly what's missing.
2. 2
   Submit for registration

   One click (or the MCP tool register_sms_compliance). Approval typically takes a few days — start early.
3. 3
   Assign a number

   Once approved, attach a texting-enabled number to the service. Until then the service runs in sandbox so you can build and test workflows.

What SMS is used for

• The 5-second lead text — form submitted → SMS within seconds. 78% of customers hire the first responder.
• Missed call → text back — "Sorry we missed you — reply here and we'll get you booked." The AI handles the reply.
• Reminders — booking confirmations, day-before and morning-of texts that cut no-shows 30–50%.
• Two-way AI conversations — "text us your order"; the SMS agent takes it from there.
• Campaigns — reactivation and seasonal sends to audiences, with STOP and quiet hours enforced.

Compliance behavior

• STOP unsubscribes the contact everywhere, instantly — one suppression list workspace-wide.
• Quiet hours hold non-urgent sends until morning.
• DND on the contact blocks the channel no matter which workflow or campaign tries. See DND & suppression.