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<p class=MsoNormal><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Francois,<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><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><span class=EmailStyle19><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>The
problem is that both H.323 and H.225.0 state that in the Q.931 elements used
for “telephone numbers” the code point indicating the presence of a private
number is used to indicate that the address is in the UUI.<span
style="mso-spacerun: yes">  </span>It is not possible to conform to this
usage and to use this value to indicate that the Q.931 element contains a
private number.<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle19><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><span class=EmailStyle19><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='mso-margin-top-alt:12.0pt'><!--[if supportFields]><span 
class=EmailStyle19><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=navy><span style='color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal><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=MsoNormal><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=navy><span style='font-size:8.0pt;
mso-bidi-font-size:12.0pt;color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color=navy face="Times New Roman"><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:navy'>Tel:<span
style="mso-spacerun: yes">  </span>+1.561.997-3756<span
style="mso-spacerun: yes">  </span>Fax:<span style="mso-spacerun:
yes">  </span>+1.561.997-3403</span></font><font size=1 color=navy><span
style='font-size:8.0pt;mso-bidi-font-size:12.0pt;color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal><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-spacerun: yes">  </span><a
href="mailto:Robert.Callaghan@ICN.Siemens.com"><font size=3><span
style='font-size:12.0pt'>Robert.Callaghan@ICN.Siemens.com</span></font></a></span></font><font
color=navy><span style='color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

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

<p class=MsoNormal><!--[if supportFields]><span class=EmailStyle19><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=EmailStyle19><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:.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> Francois Audet
[mailto:audet@nortelnetworks.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, June 19, 2001 7:27
PM<br>
<b><span style='font-weight:bold'>To:</span></b> Callaghan, Robert; 'Glenn
FREUNDLICH (E-mail)'<br>
<b><span style='font-weight:bold'>Cc:</span></b> 'SG16 ITU-T (E-mail)'; 'Paul
JONES (E-mail)'<br>
<b><span style='font-weight:bold'>Subject:</span></b> Private telephone number
in H.323v4</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=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Hi,</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=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>I just
realize a contradiction in H.323v4 and H.225.0v4 concerning the encoding of
"private telephone numbers" (i.e., the type we all use at work):</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1;tab-stops:list 1.0in'><![if !supportLists]><font
size=2 color=black face=Symbol><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Symbol;color:black;mso-color-alt:windowtext'>·<font size=1
face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>        
</span></font></span></font><![endif]><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'>H.225.0v4 says that
"Private telephone numbers" shall be encoded in the UUIE as private
numbers, and NOT in the Q.931 information elements (Calling party IE, etc.).
Let's call this the "Bob method". See Table 18/H.225.0 Note 1.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1;tab-stops:list 1.0in'><![if !supportLists]><font
size=2 color=black face=Symbol><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Symbol;color:black;mso-color-alt:windowtext'>·<font size=1
face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>        
</span></font></span></font><![endif]><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'>H.323v4 says that the
Q.931 information element is used for "telephone numbers", and that
the UUIE is used for things that are not telephone numbers. Let's call this the
"Glenn method". See H.323v4/7.8.2.1 and 7.8.2.2.</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=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>There
is no conflict with both method for "public" telephone number, but
there is a conflict for "private" telephone numbers.</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=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Which
method is right, Bob's or Glenn's?</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=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>----</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:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>François
AUDET, Nortel Networks</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:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'><a
href="mailto:audet@nortelnetworks.com">mailto:audet@nortelnetworks.com</a>,
tel:+1 408 495 3756</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:.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>

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