Hi all,
Supporse there are a UAC and a UAS. The UAS receives the an INVITE and creates a IST. It responds with a 200 OK (IST directly goes to the terminated state) and waits for an ACK. At this time, if a re-transmission of invite is received (with the same branch param in the top via header), what should the UAS do? create a new IST or ignore it? If there is a solution, does it apply to the re-invite? Thanks in advance

Richard Wu
ASTRI

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