On 3/25/18 5:26 PM, Alex Balashov wrote:
Hi,
Are 407 challenges meant to have a To tag? If so, I can't find the
rationale in 3261. Any pointers would be appreciated.
(working from memory)
An argument against to-tag in 407 would presumably apply equally to any
3xx, 4xx, 5xx, or 6xx. One could argue that the to-tag is for
establishing a dialog, and if no dialog has been established then it
isn't needed.
OTOH, AFAIK the requirement to include a to-tag is across the board.
Thanks,
Paul
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