[AVT] AD review: draft-ietf-srtp-not-mandatory-05

[Robert Sparks <[e-mail]>]

Summary: This is ready to go into IETF last call (which should be issued shortly)

I have some comments/questions - treat these as early last call comments:

In the bullet list in section 4, I don't think it is necessary for this document
to speculate on the prevalence of the different deployment environments.
I suggest changing "The most common use case for RTP is probably" to
"A common use case for RTP is"

Section 4 could be read (through omission) to imply that dtls-srtp or zrtp
are not appropriate for the point-to-point on trusted infrastructure use case.
I don't think that was the intent of the working group and suggest explicitly
mentioning that dtls-srtp or zrtp would be appropriate for those environments
as well.

Nit: s/unncessary/unnecessary/