Using the Mobile Equipment Identity (MEID) URN as an Instance ID, September 2018
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This document specifies how the Uniform Resource Name (URN) namespace reserved for the Third Generation Partnership Project 2 (3GPP2) identities and its Namespace Specific String (NSS) for the Mobile Equipment Identity (MEID) can be used as an Instance ID. The purpose of this Instance ID is to fulfill the requirements for defining how a specific URN needs to be constructed and used in the "+sip.instance" Contact header field parameter for outbound behavior.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.