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Two early dialogs
Diagram
Two early dialogs · study drawing · cyphermonkeylabs.com
Peer
Proxy
Phone A
Phone B
INVITE
100
INVITE
INVITE
180
180
Sources and go deeper
RFC 3261 §16
— last checked 2026-10
RFC 3261 §12
— last checked 2026-10
RFC 3261 §13
— last checked 2026-10