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SMS channel

📷 Screenshot needed — the SMS Channel group expanded, with number, type and routing.Save to /images/en/sms-agents/channel-group.png

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Agent type

With Lumina, choose Inbound. An outbound agent will save, but won’t be able to start conversations.

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Time-based routing

Inbound agents only. Defines the windows it covers, with up to 4 ranges per day, or marks it as the number’s default agent.
  • Ranges are evaluated in the agent’s timezone.
  • Windows are half-open: at exactly 17:00, a 09:00–17:00 agent is off duty and a 17:00–21:00 agent is on. That way adjacent windows tile the week without overlapping.
  • A range that ends before it starts wraps past midnight.
SMS routing is by schedule only. There are no tag audiences: two agents on the same number can’t share even a minute of the week. Any overlap is a conflict and blocks the save.
If the number has no default agent, messages outside scheduled hours aren’t routed to anyone.

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Conversation behaviour

Only two controls:
There is no response length control, no conversation style, no message batching, and no reply-delay setting. All of that is defined by writing it into the prompt.
Since there’s no length control, put an explicit limit in the prompt rules: “Two sentences per message, maximum.”

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AI Memory

Works the same as WhatsApp, and Lumina does receive it.
Reading is opt-in; writing is on by default. If you’ve never opened this section, your agent is already contributing what it learns to the contact’s shared memory.
The Configure modal defines what it records: Facts, Preferences, Open items and Milestones, plus a business context and a Never record list — a hard exclusion for card numbers, ID documents or health data.

Contact memory

The full explanation of how memory works. It applies equally to SMS.

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Outcomes

Disposition tags classify the conversation when it closes. On SMS all five types are available: Standard, Retry, Interested, Not Interested and Voicemail.
The Analysis Prompt field is badged Aurora Only: on a Lumina agent it’s saved but not used for classification.

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Testing

The editor’s test panel lets you talk to the agent before exposing it.
As on the other channels, API and integration tools run for real. Use test data.

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Next step

Compliance and opt-outs

STOP, HELP, START and A2P 10DLC registration.