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<div class=Section1>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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=EmailStyle19><font size=2 color="#993366"
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=EmailStyle19><font size=2 color="#993366"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>Based on this email, we have not agreement at all.<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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 style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span class=EmailStyle19><font
size=2 color="#993366" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'>1)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>       </span></font></span></font></span><![endif]><span
class=EmailStyle19><font size=2 color="#993366" face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>I am not
interest at all in developing an addressing scheme for the sole reason that it
mimics the addressing schemes used by SIP.<span style="mso-spacerun:
yes">  </span>SIP is very oriented towards the concept of domains defined
by DNS and a user in that domain.<span style="mso-spacerun: yes"> 
</span>H.323 is oriented towards administration domains defined by one or more
gatekeepers and users attached to those gatekeepers.<span style="mso-spacerun:
yes">  </span>The only commonality is that a gatekeeper can be a server
with a name defined by DNS.<span style="mso-spacerun: yes">  </span>These distinctions
must remain.<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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 style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span class=EmailStyle19><font
size=2 color="#993366" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'>2)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>       </span></font></span></font></span><![endif]><span
class=EmailStyle19><font size=2 color="#993366" face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>It is
unacceptable to force the implementation of annex G on any endpoint, gatekeeper
or administrative domain.<span style="mso-spacerun: yes">  </span>Therefore
the differentiation between the use of Annex G or the use of LRQ should not
known to the originating endpoint.<span style="mso-spacerun: yes"> 
</span>The differentiation should be that this address defines the destination endpoint
(direct relationship) or it defines a source for resolving the destination
endpoint address (indirect).<span style="mso-spacerun: yes">  </span><o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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 style='margin-left:.5in'><span class=EmailStyle19><font
size=2 color="#993366" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'>In my view, in the direct relation a SETUP message is
routed towards the entity defined by the DNS where the user portion is
resolved.<span style="mso-spacerun: yes">  </span>This may be direct
routed or gatekeeper routed, it does not matter.<span style="mso-spacerun:
yes">  </span>The endpoint defined by the DNS may be a gatekeeper or the
endpoint itself where the user portion defines one of multiple users on that
endpoint.<span style="mso-spacerun: yes">  </span><o:p></o:p></span></font></span></p>

<p class=MsoNormal style='margin-left:.5in'><span class=EmailStyle19><font
size=2 color="#993366" 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 style='margin-left:.5in'><span class=EmailStyle19><font
size=2 color="#993366" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'>For the indirect relationship, the endpoint must
resolve the address of the destination address before sending the SETUP
message.<span style="mso-spacerun: yes">    </span>Based on
H.323 procedures, the endpoint sends ARQ to its GK.<span style="mso-spacerun:
yes">  </span>How the GK resolves the address is within the capabilities
of the GK.<span style="mso-spacerun: yes">  </span>It may use Annex G, it
this is possible.<span style="mso-spacerun: yes">  </span>Or, it may fall
back to LRQ to the entity specified by the DNS name.<o:p></o:p></span></font></span></p>

<p class=MsoNormal style='margin-left:.5in'><span class=EmailStyle19><font
size=2 color="#993366" 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 style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span class=EmailStyle19><font
size=2 color="#993366" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'>3)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>       </span></font></span></font></span><![endif]><span
class=EmailStyle19><font size=2 color="#993366" face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>The
definition of an H.323 URL cannot be the vehicle to implicitly define new
procedures for address resolution.<span style="mso-spacerun: yes"> 
</span>If a new procedure for address resolution is to be defined, it must be
explicit, and it must be clear. <span style="mso-spacerun:
yes"> </span>These requirements have not been realized.<span
style="mso-spacerun: yes">  </span>I have seen no procedural text that has
full agreement. <span style="mso-spacerun: yes"> </span>I have seen Annex
O as a working document, but this is a year from closure.<span
style="mso-spacerun: yes">  </span>I expect to have many discussions on
this subject in future meetings (note the plural).<span style="mso-spacerun:
yes">  </span>The H.323 URL we have for November must support the existing
H.323 procedures without any implicit extension or modification.<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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=EmailStyle19><font size=2 color="#993366"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>I think that Paul’s proposal meets the requirements that I have stated. <o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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=EmailStyle19><font size=2 color="#993366"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>Where does this leave us now?<span style="mso-spacerun: yes"> 
</span><o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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=EmailStyle19><font size=2 color="#993366"
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>Bob<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><font size=2 color="#993366"
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=EmailStyle19><font 
size=2 color="#993366" 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="#993366"><span style='color:#993366'>------------------------------------------------------------------</span></font><font
color="#993366"><span style='color:#993366;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="#993366" face="Times New Roman"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#993366'>Siemens
Enterprise Networks</span></font><font size=1 color="#993366"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#993366;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=1 color="#993366" face="Times New Roman"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#993366'>Tel:
+1.561.923.1756<span style='mso-tab-count:1'>              </span>Fax:
+1.561.923.1403</span></font><font size=1 color="#993366"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#993366;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=1 color="#993366" face="Times New Roman"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:#993366'>Email:<span
style='mso-tab-count:1'>      </span>Robert.Callaghan@ICN.Siemens.com</span></font><font
size=1 color="#993366"><span style='font-size:8.0pt;mso-bidi-font-size:12.0pt;
color:#993366;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=3 color="#993366" face="Times New Roman"><span
style='font-size:12.0pt;color:#993366'>------------------------------------------------------------------</span></font><font
color="#993366"><span style='color:#993366;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal><!--[if supportFields]><span class=EmailStyle19><font 
size=2 color="#993366" face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'><span style='mso-element:field-end'></span></span></font></span><![endif]--><span
class=EmailStyle19><font size=2 color="#993366" 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 style='margin-left:.5in'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:black'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> Orit Levin
[mailto:orit@radvision.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, September 08, 2000
3:57 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Paul E. Jones; Robert (Bob)
Callaghan<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: Re: Revised H.323 URL
document</span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>Hello Paul
and Bob!</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>I prepared
the following "speech" for the mailing list, but it is
definitely better to try to understand each other first...</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>---------------------------------------</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>I hate to
disappoint you, but I would strongly disagree with the proposed
"mode" terminology.</span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>I will try to
explain below, why it does not fit the URL concept.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>1. The MAIN
purpose of URL is to use the Internet DNS Infrastructure
for SERVICE+ADDRESS resolution ACROSS the DOMAINS.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>(The use of
the "user-only" URL is [just] a possible additional feature.)</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>2. The H.323
"direct vs. routed" concept specifies the relations
between an End Point and ITS Gatekeeper. It is an local
policy issue WITHIN their zone.</span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>Today,
according to H.323 specification, the real flavor of the operational mode
in the DESTINATION zone is UNKNOWN (and irrelevant) to the originator
of the call. </span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>Not
mentioning the future possible GK decomposition!...</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>3. Following
the proposed "mode" terminology, I guess, "routed" would
mean "LRQ" or "Access Request" and "direct" would
mean "Setup". In reality, the LRQ would lead to the "direct
call" and the Setup would lead to the "routed call". And how to
distinguish between the all three?</span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>4.
The INTER-ZONE communication haven't been solidly defined so
far. </span></font><font size=2 color=black><span lang=FR style='font-size:
10.0pt;color:black;mso-ansi-language:FR'>(LRQ ? Annex G?)</span></font><font
color=black><span lang=FR style='color:black;mso-color-alt:windowtext;
mso-ansi-language:FR'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>The INTER-DOMAIN
communication is the subject of H.225.0 Annex G.  </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>The URL
approach is an OPTION for all of the "intra" and
"inter" H.323 Zone and H.323 Domain cases.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>It may
be used as a first lookup, before the LRQ or Annex G are performed.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>It may
also have an overlapping functionality with LRQ and with very specific PARTS of
Annex G.</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>The relations
between the H.323 URL and H.225.0 "Annex G" are very close to
those of the SIP-URL and TRIP in a "SIP system". Both have
their uses and complement each other.</span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>5. The
proposal is to have a possibility to "publish", using the URL, the
first procedure, to be issued towards the destination "domain".</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>By its
nature, it is not an issue for standardization. It is a policy of the
destination domain, which also is responsible for the URL itself.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>The first
procedure (i.e. the "method") required for establishing of a specific
call across domains/zones can be either of the following:</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>-   
H.225.0 Annex G/AccessRequest</span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>-   
H.225.0/LRQ</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>-   
H.225.0/CALL SETUP</span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>Once, the
first message is issued towards the destination (which is a result of DNS
lookup using the URL), the rest of the procedures are, indeed, very
well defined by H.323 and H.225.0 Annex G all together. </span></font><font
size=2 color=black><span style='font-size:10.0pt;color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'> </span></font><font
size=2 color=black><span style='font-size:10.0pt;color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt;color:black'>Best Regards,</span></font><font
size=2 color=black><span style='font-size:10.0pt;color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Orit Levin<br>
RADVision Inc.<br>
575 Corporate Drive Suite 420<br>
Mahwah, NJ 07430<br>
Tel: 1 201 529 4300  (230)<br>
Fax: 1 201 529 3516<br>
<a href="http://www.radvision.com">www.radvision.com</a><br>
<a href="mailto:orit@radvision.com">orit@radvision.com</a></span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<div style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt'>

<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;
margin-left:39.75pt;border:none;mso-border-left-alt:solid black 1.5pt;
padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>-----Original Message-----</span></font></b><font size=2
color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'><br>
<b><span style='font-weight:bold'>From: </span></b>Callaghan, Robert <<a
href="mailto:Robert.Callaghan@ICN.SIEMENS.COM">Robert.Callaghan@ICN.SIEMENS.COM</a>><br>
<b><span style='font-weight:bold'>To: </span></b><a
href="mailto:ITU-SG16@MAILBAG.INTEL.COM">ITU-SG16@MAILBAG.INTEL.COM</a> <<a
href="mailto:ITU-SG16@MAILBAG.INTEL.COM">ITU-SG16@MAILBAG.INTEL.COM</a>><br>
<b><span style='font-weight:bold'>Date: </span></b>Thursday, September 07, 2000
8:17 AM<br>
<b><span style='font-weight:bold'>Subject: </span></b>Re: Revised H.323 URL
document</span></font><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Paul,<o:p></o:p></span></font></span></p>

<p class=MsoNormal style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy 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 style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>I definitely like
"mode" as a replacement for "protocol."<span
style="mso-spacerun: yes">  </span>It clearly represents the required
procedure without over doing details.<o:p></o:p></span></font></span></p>

<p class=MsoNormal style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy 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 style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>I think that we got it.<o:p></o:p></span></font></span></p>

<p class=MsoNormal style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy 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 style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Bob<o:p></o:p></span></font></span></p>

<p class=MsoNormal style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><span
class=EmailStyle16><font size=2 color=navy 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 style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><!--[if supportFields]><span 
class=EmailStyle16><font size=2 color=navy 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=navy><span style='color:navy'>------------------------------------------------------------------</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><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 style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=1
color=navy face="Times New Roman"><span style='font-size:8.0pt;mso-bidi-font-size:
12.0pt;color:navy'>Siemens Enterprise Networks</span></font><font size=1
color=black><span style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=1
color=navy face="Times New Roman"><span style='font-size:8.0pt;mso-bidi-font-size:
12.0pt;color:navy'>Tel: +1.561.923.1756<span style='mso-tab-count:1'>            </span>Fax:
+1.561.923.1403</span></font><font size=1 color=black><span style='font-size:
8.0pt;mso-bidi-font-size:12.0pt;color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=1
color=navy face="Times New Roman"><span style='font-size:8.0pt;mso-bidi-font-size:
12.0pt;color:navy'>Email:<span style='mso-tab-count:1'>    </span>Robert.Callaghan@ICN.Siemens.com</span></font><font
size=1 color=black><span style='font-size:8.0pt;mso-bidi-font-size:12.0pt;
color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=navy face="Times New Roman"><span style='font-size:12.0pt;color:navy'>------------------------------------------------------------------</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:39.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><!--[if supportFields]><span 
class=EmailStyle16><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><span style='mso-element:
field-end'></span></span></font></span><![endif]--><span class=EmailStyle16><font
size=2 color=navy 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>

</div>

<div style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt'>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=2
color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:black'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> Paul E. Jones
[mailto:paulej@acm.org]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, September 06,
2000 11:20 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Robert Callaghan; Orit Levin;
ITU-SG16@mailbag.cps.intel.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> Revised H.323 URL
document</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=black face="Times New Roman"><span style='font-size:12.0pt;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>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=black face=Arial><span lang=FR style='font-size:12.0pt;font-family:Arial;
color:black;mso-ansi-language:FR'>Orit, Bob, et al,</span></font><font
color=black><span lang=FR style='color:black;mso-color-alt:windowtext;
mso-ansi-language:FR'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=black face="Times New Roman"><span lang=FR style='font-size:12.0pt;
color:black;mso-ansi-language:FR'> </span></font><font color=black><span
lang=FR style='color:black;mso-color-alt:windowtext;mso-ansi-language:FR'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=black face=Arial><span style='font-size:12.0pt;font-family:Arial;
color:black'>Attached is the revised section covering the syntax of the H.323
URL.  This (I hope) includes all of the changes we have discussed so
far.  I am not sure that we settled on the "mode" parameter, but
I made the change here in this document-- feedback is welcome.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=black face=Arial><span style='font-size:12.0pt;font-family:Arial;
color:black'>Best Regards,</span></font><font color=black><span
style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:75.75pt;border:none;mso-border-left-alt:
solid black 1.5pt;padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3
color=black face=Arial><span style='font-size:12.0pt;font-family:Arial;
color:black'>Paul</span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>

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