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Interoperability Impacts of IPv6 Interworking with Existing IPv4 SIP Implementations

This document captures potential impacts to IPv4 SIP implementations when interworking with IPv6 SIP implementations. Although some amount of interworking translation will occur at the network and application layers, an IPv4 SIP application may still encounter a SIP message with some IPv6 values in it, resulting in unforeseen error conditions. Such potential scenarios will be identified in this document so that SIP application developers can define solutions to handle these cases. Note, this document is not intended to be an exhaustive list, rather to provide an overview of some of the more commonly encountered potential scenarios.

SIP Forum Document Number: TWG-9