Conflicting text in H.323 concerning the requirement for establishing a H.245 control channel??
frank.derks at PHILIPS.COM
Tue Mar 20 10:39:31 EST 2001
I thought I was being clear enough, so let me try again. 6.2.8/H.323 states
that an enpoint must open one (and exactly one) H.245 control channel. When
Fast Connect is being used, I assume that the intention is that no such control
channel is opened.
To be compliant with 6.2.8/H,323 I would have to open a H.245 control channel
irrespective of which type of H.245 procedures I will be using. So if I intend
to use Fast Start (and assuming that the other party also supports this), I
still have to open a H.245 control channel.
cwp at isdn-comms.co.uk on 20-03-2001 15:17:14
To: Frank Derks/HVS/BE/PHILIPS at EMEA2
cc: ITU-SG16 at mailbag.cps.INTEL.COM@SMTP
Subject: Re: Conflicting text in H.323 concerning the requirement for establishing a H.245 control channel??
Why do you consider this text to be "conflicting"?
Specifically, with what does it conflict?
> 6.2.8/H.323 states: "The endpoint shall establish exactly one H.245
> Control Channel for each call that the endpoint is participating in."
> 8.1.7/H.323 never states that when Fast Connect is being used such a
> control channel should be established. As far as I understand the
> mechanism this is only required to switch to "normal" H.245 procedures.
> It would seem that section 6.2.8 should be rephrased to make clear that
> the H.245 control channel shall only be established when "normal" H.245
> procedures are being followed and not in the fast connect case.
Dr Chris Purvis -- Development Manager
ISDN Communications Ltd, The Stable Block, Ronans, Chavey Down Road
Winkfield Row, Berkshire. RG42 6LY ENGLAND
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