Hi,

Section 16.4 of rfc2543bis-03 mainly describes the route set construction
when a re-INVITE request is sent/received mid-call.
I was wondering if route set can be changed with a new Contact if a
non-INVITE request (e.g., ACK, INFO) is received with a Contact header for
an existing call leg.
For example, if a UAS receives an ACK with Contact header that is different
from the one received in the associated INVITE, should the UAS replace the
previous Contact with the new one?

Thanks,
YoungSun Song
Telcordia Technologies


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