[asterisk-dev] Challenging a send-only INVITE

[SCG]

Hi,

 

Is there any circumstance at all where it makes sense to challenge an INVITE
which is putting a call on hold?

 

I can find nothing in 3264 that suggests it, but wondered if:

 

Phone A -> Phone B (in doing so phone A may have been authenticated)

Phone B later goes to put phone A on hold

 

The only authentication Phone B has had prior to this interaction is the
implicit REGISTER challenge response that may have been several minutes ago.

 

Is that good enough?

 

Many thanks.S.

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