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10DLC is a messaging channel
The Campaign Registry describes 10DLC as an A2P messaging channel with verified brands and campaign service providers. It is not SIP. Educational only.
Learn in 5 minutes
- Say what 10DLC is on the opened registry page
- Keep it out of the SIP dialog
- Refuse to invent a statute this lab did not open
Visual
If a vendor also sells both, the documents are still different.
Worked example
Split the ticket Two symptoms arrived in one ticket. Separate them.
- Read the voice line.
- Read the messaging line.
- Pick the one that is 10DLC.
Fault
Outbound calls fail. A custom header X-Campaign was added so the voice carrier would treat the call as 10DLC.
The registry page describes campaigns and connectivity partners, not a SIP header.
Quiz
Ecosystem
Glossary, sister systems, and the integration seam for this room.
Analytics Amazon Connect can attach conversational analytics to an external voice system with a SIPREC connector. The analytics plane is not a second SIP proxy for the customer call.
Sources and go deeper
- The Campaign Registry — last checked 2026-10
- RFC 3261 — last checked 2026-10