>From RFC2361, 14.1
If a UAC receives a 491 response to a re-INVITE, it SHOULD start a
timer with a value T chosen as follows:
1. If the UAC is the owner of the Call-ID of the dialog ID
(meaning it generated the value), T has a randomly chosen value
between 2.1 and 4 seconds in units of 10 ms.
2. If the UAC is not the owner of the Call-ID of the dialog ID, T
has a randomly chosen value of between 0 and 2 seconds in units
of 10 ms.
Question: Why are these values suggested to be random within a range?
What is the adverse effect of fixing (sufficiently different) constant
values, say, 2.5 for the first case and 1.5 for the second case?
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