[MMUSIC] 4566bis-36: Minor editorial comments regarding line descriptions in section 5

Christer Holmberg <christer.holmberg@ericsson.com> Wed, 24 July 2019 10:13 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: 4566bis-36: Minor editorial comments regarding line descriptions in section 5
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Date: Wed, 24 Jul 2019 10:13:01 +0000
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Subject: [MMUSIC] 4566bis-36: Minor editorial comments regarding line descriptions in section 5
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Hi,

I had a look at section 5, and I have a couple of minor editorial comments:

Q1:

Section 5.6. says:

   “If an email address or phone number is present, it MUST be specified before the first media description.”

I don’t think we need that statement. We define elsewhere (both in Section 5 and in the syntax) the order of the letters.

---

Q2:

Section 5.4 says:

“At most one "i=" line can be used for each media description.”

…while section 5.5 says:

“This line is OPTIONAL. No more than one "u=" line is allowed per session description.”

…while section 5.6 says:

“Inclusion of an email address or phone number is OPTIONAL.”

I assume “at most one” and “no more than one” means the same thing, and if we want to explicitly indicate that something is OPTIONAL we should use it in all places where it applies. So, I think it would be good to have aligned terminology, e.g.,:

“This X line is OPTIONAL, and at most one X line can be included in a media/session description”

---

Q3:

In section 5.4 the text says twice that there can be at most one “i=” line in a media description. Do we need to repeat?


Regards,

Christer