11 Feb
2015
11 Feb
'15
10:30 a.m.
I think this is covered by SIP RFC - a 423 reply with Min-Expires header has to be sent back.
* https://tools.ietf.org/html/rfc3261#section-20.23
I am not sure sending back 200ok with higher expires is RFC compliant, but if it helps with some user agents, it can be made optional.
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