Problem Statement for an AI-Session-ID in SIP

This document describes a signaling-layer correlation gap in SIP- based real-time AI voice systems. Existing SIP identifiers provide dialog and communication-session scope, but they do not define a stable application-layer identifier capable of persisting across topology changes, multi-dialog call control operations, federated interconnects, or distributed processing environments. The document analyzes current mechanisms and their limitations, and motivates the need for a standardized SIP-carried identifier whose semantics are restricted to application-layer correlation and out-of- band context retrieval.