Invite through a proxy
02SIP proxies route signaling toward a user; the media path can be separate.
Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 4 ↗
RFC 3261 · § 4EXAMPLE
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03
ACK
Acknowledge the successful INVITE response.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
INVITE begins an invitation transaction.
- INVITE begins an invitation transaction.
- Provisional responses report progress.
- A successful final response is acknowledged with ACK.
The illustration is schematic. Example values are illustrative; profiles and later security guidance can add requirements.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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