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<p class=MsoNormal><span class=EmailStyle20><font size=2 color="#003300"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>Orit,<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle20><font size=2 color="#003300"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle20><font size=2 color="#003300"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>Let us try to focus on a few points first:<span style="mso-spacerun:
yes"> </span>(These are snippets from the thread.)<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle20><font size=2 color="#003300"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>OL: Are you interested in efficiently
running H.323 over the Internet?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>RC: Yes!<span style="mso-spacerun:
yes"> </span>For clarification, this is the H.323 as defined in H.323v4
and H.225.0v4.<span style="mso-spacerun: yes"> </span>For the November
decision, there should not be any extensions, implicit or explicit.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;color:blue'>OL:
The picture, in my mind, is different from yours and fits the
"traditional" H.323. For every H.323 call, logically there are (at
least) two GKs: source and destination. (Physically, both of them are optional,
based on the "mode" policy inside the corresponding H.323 zones.)<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;color:blue'>RC:<span
style="mso-spacerun: yes"> </span>I agree with your model of two endpoint
each with an optional GKs based on zone policies. <span style="mso-spacerun:
yes"> </span>The source and destination policies are independent from each
other.<span style="mso-spacerun: yes"> </span>I don’t know how this is
different, as you state.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;color:blue'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;color:blue'>OL:
</span></font></span><span class=EmailStyle19><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>By
specifying in H323-URL the "mode" of operation between the source EP
and a GK, you propose to use the URL for "publishing" the relations
between the EP and "ITS" GK PER DESTINATION! It is, indeed, very
different from the H.323 today. Moreover, you implicitly introduce a concept of
a "source" GK, being re-defined each time BY THE DESTINATION. (This
case may be considered as an additional application for the H.323 URL)<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>RC: I make so such
assumption.<span style="mso-spacerun: yes"> </span>In the “Direct” model,
I assume that the given address is directly callable.<span style="mso-spacerun:
yes"> </span>The routing model is not specified nor assumed.<span
style="mso-spacerun: yes"> </span>If the term “Direct” is a problem in
that the term overlaps with the routing model then the use of “Callable” would
be fine.<span style="mso-spacerun: yes"> </span>The use of the DNS
service to convert the DNS domain to an IP address is assumed.<span
style="mso-spacerun: yes"> </span>This is also the only use of the DNS
server. <span style="mso-spacerun: yes"> </span>No DNS records beyond the “A”
record will be used.<span style="mso-spacerun: yes"> </span>If the
initial use of the H.323 URL could be limited to this service.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>RC:<span
style="mso-spacerun: yes"> </span>The use of the “Indirect” or “non
callable” form has bothered me in that its use is not clearly defined.<span
style="mso-spacerun: yes"> </span>My view is that this was a means to
access an H.323 repository to obtain the true address. <span
style="mso-spacerun: yes"> </span>Apparently there are other views.<span
style="mso-spacerun: yes"> </span>Therefore I suggest that a solution
would be to drop this form for now.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;color:blue'>OL:
The natural use of URLs is between the zones/domain. For H.323, it is an
OPTION, what kind of address resolution to propose and use. <u>The beauty of
the URL approach is that the DESTINATION provides an option to be reached using
the DNS lookup</u>, if it chooses so and populates properly the DNS.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;color:blue'>RC:
The may be beautify for some; but it is definitely new.<span
style="mso-spacerun: yes"> </span>I know of nothing in H.323v4 that
describes the procedures and rules for this type of address resolution. <span
style="mso-spacerun: yes"> </span>This can be discussed as part of Annex
O, after the decision on H.323v4.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle19><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;color:blue'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>OL: We don't have to agree on the mailing
list. We can spend more then one meeting in order to reach "the
consensus". In that case, I would support the inclusion of the
minimal H323-URL only (without any parameters and without the PORT
number) towards the H.323v4.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>RC: I agree that it is not possible to
agree to a complex solution on the mailing list.<span style="mso-spacerun:
yes"> </span>However, I hope that we can agree to a simple URL without
any parameters or port (ouch! </span></font><font size=2 color=blue
face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:blue;
mso-char-type:symbol;mso-symbol-font-family:Wingdings'><span style='mso-char-type:
symbol;mso-symbol-font-family:Wingdings'>J</span></span></font><font size=2
color=blue face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:blue'>) where this URL is the actual address to be used in a SETUP message.<span
style="mso-spacerun: yes"> </span>This should not change anything in
H.323 including the use of the GK.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>I hope that this helps.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Bob</span></font><span class=EmailStyle19><font
size=2 color="#993366" face=Arial><span style='font-size:10.0pt;font-family:
Arial'><o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle20><font size=2 color="#003300"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoAutoSig><!--[if supportFields]><span class=EmailStyle20><font
size=2 color="#003300" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'><span style='mso-element:field-begin'></span><span
style="mso-spacerun: yes"> </span>AUTOTEXTLIST \s "E-mail
Signature" <span style='mso-element:field-separator'></span></span></font></span><![endif]--><font
color="#003300"><span style='color:#003300'>------------------------------------------------------------------</span></font><font
color="#003300"><span style='color:#003300;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=3 color="#339966" face="Cló Gaelach (Twomey)"><span
style='font-size:12.0pt;font-family:"Cló Gaelach \(Twomey\)";color:#339966'>Robert
Callaghan<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=1 color="#003300" face="Times New Roman"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#003300'>Siemens
Enterprise Networks</span></font><font size=1 color="#003300"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#003300;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=1 color="#003300" face="Times New Roman"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#003300'>Tel:
+1.561.923.1756<span style='mso-tab-count:1'> </span>Fax:
+1.561.923.1403</span></font><font size=1 color="#003300"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#003300;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=1 color="#003300" face="Times New Roman"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#003300'>Email:<span
style='mso-tab-count:1'> </span>Robert.Callaghan@ICN.Siemens.com</span></font><font
size=1 color="#003300"><span style='font-size:8.0pt;mso-bidi-font-size:12.0pt;
color:#003300;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=3 color="#003300" face="Times New Roman"><span
style='font-size:12.0pt;color:#003300'>------------------------------------------------------------------</span></font><font
color="#003300"><span style='color:#003300;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><!--[if supportFields]><span class=EmailStyle20><font
size=2 color="#003300" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
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color=black><span style='color:black'><![if !supportEmptyParas]> <![endif]></span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
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