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<TITLE>RE: Private telephone number in H.323v4</TITLE>
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<P><FONT COLOR="#800000" SIZE=2 FACE="Arial">Hi Bob,</FONT>
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<P><FONT COLOR="#800000" SIZE=2 FACE="Arial">I'm not sure I understand your point. </FONT>
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<P><FONT COLOR="#800000" SIZE=2 FACE="Arial">The way I read it now:</FONT>
<UL><LI><FONT COLOR="#800000" SIZE=2 FACE="Arial">H.323 says "Put a private number in the Q.931 IE"; and</FONT></LI>
<LI><FONT COLOR="#800000" SIZE=2 FACE="Arial">H.225.0 says "Put a private number in the UUIE".</FONT></LI>
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<P><FONT COLOR="#800000" SIZE=2 FACE="Arial">Which one is it? I think you are saying H.225.0 is right (I tend to agree and so does Paul). We need to make sure everybody does (Glenn in particular), and H.323 should be clarified, because I would assume most people who read it will think they are supposed to put the IE in the Q.931 information element.</FONT></P>
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<P><FONT SIZE=1 FACE="Arial">-----Original Message-----</FONT>
<BR><B><FONT SIZE=1 FACE="Arial">From: </FONT></B> <FONT SIZE=1 FACE="Arial">Callaghan, Robert [SMTP:Robert.Callaghan@icn.siemens.com]</FONT>
<BR><B><FONT SIZE=1 FACE="Arial">Sent: </FONT></B> <FONT SIZE=1 FACE="Arial">Wednesday, June 20, 2001 05:00</FONT>
<BR><B><FONT SIZE=1 FACE="Arial">To: </FONT></B> <FONT SIZE=1 FACE="Arial">Audet, Francois [SC2:4K02:EXCH]; 'Glenn FREUNDLICH (E-mail)'</FONT>
<BR><B><FONT SIZE=1 FACE="Arial">Cc: </FONT></B> <FONT SIZE=1 FACE="Arial">'SG16 ITU-T (E-mail)'; 'Paul JONES (E-mail)'</FONT>
<BR><B><FONT SIZE=1 FACE="Arial">Subject: </FONT></B> <FONT SIZE=1 FACE="Arial">RE: Private telephone number in H.323v4</FONT>
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<P><FONT COLOR="#000080" SIZE=2 FACE="Arial">Francois,</FONT>
<BR><FONT COLOR="#000080" SIZE=2 FACE="Arial"> </FONT>
<BR><FONT COLOR="#000080" SIZE=2 FACE="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. 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.</FONT></P>
<P><FONT COLOR="#000080" SIZE=2 FACE="Arial"> </FONT>
<BR><FONT COLOR="#000080" SIZE=2 FACE="Arial">Bob</FONT>
<BR><FONT COLOR="#000080" FACE="Arial">-------------------------------------------------------</FONT>
<BR><FONT COLOR="#339966" FACE="Cló Gaelach">Robert Callaghan</FONT>
<BR><FONT COLOR="#000080" SIZE=1 FACE="Times New Roman">Siemens Enterprise Networks</FONT>
<BR><FONT COLOR="#000080" SIZE=1 FACE="Times New Roman">Tel: +1.561.997-3756 Fax: +1.561.997-3403</FONT>
<BR><FONT COLOR="#000080" SIZE=1 FACE="Times New Roman">Email: Robert.Callaghan@ICN.Siemens.com <<A HREF="mailto:Robert.Callaghan@ICN.Siemens.com">mailto:Robert.Callaghan@ICN.Siemens.com</A>></FONT>
<BR><FONT COLOR="#000080" FACE="Times New Roman">--------------------------------------------------------</FONT>
<BR><FONT COLOR="#000080" SIZE=2 FACE="Arial"> </FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Tahoma">-----Original Message-----<BR>
</FONT><B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma">From:</FONT></B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma"> Francois Audet [<A HREF="mailto:audet@nortelnetworks.com">mailto:audet@nortelnetworks.com</A>]<BR>
</FONT><B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma">Sent:</FONT></B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma"> Tuesday, June 19, 2001 7:27 PM<BR>
</FONT><B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma">To:</FONT></B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma"> Callaghan, Robert; 'Glenn FREUNDLICH (E-mail)'<BR>
</FONT><B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma">Cc:</FONT></B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma"> 'SG16 ITU-T (E-mail)'; 'Paul JONES (E-mail)'<BR>
</FONT><B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma">Subject:</FONT></B><FONT COLOR="#000000" SIZE=2 FACE="Tahoma"> Private telephone number in H.323v4</FONT>
<BR><FONT FACE="Times New Roman"> </FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Arial">Hi,</FONT>
<BR><FONT COLOR="#000000" FACE="Times New Roman"> </FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Arial">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):</FONT></P>
<P><FONT COLOR="#000000" SIZE=2 FACE="Symbol">·</FONT><FONT COLOR="#000000" SIZE=1 FACE="Times New Roman"> </FONT> <FONT COLOR="#000000" SIZE=2 FACE="Arial">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.</FONT></P>
<P><FONT COLOR="#000000" SIZE=2 FACE="Symbol">·</FONT><FONT COLOR="#000000" SIZE=1 FACE="Times New Roman"> </FONT> <FONT COLOR="#000000" SIZE=2 FACE="Arial">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.</FONT></P>
<P><FONT COLOR="#000000" SIZE=2 FACE="Arial">There is no conflict with both method for "public" telephone number, but there is a conflict for "private" telephone numbers.</FONT></P>
<P><FONT COLOR="#000000" FACE="Times New Roman"> </FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Arial">Which method is right, Bob's or Glenn's?</FONT>
<BR><FONT COLOR="#000000" FACE="Times New Roman"> </FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Arial">----</FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Arial">François AUDET, Nortel Networks</FONT>
<BR><U><FONT COLOR="#0000FF" SIZE=2 FACE="Arial"><<A HREF="mailto:audet@nortelnetworks.com">mailto:audet@nortelnetworks.com</A>></FONT></U><FONT COLOR="#000000" SIZE=2 FACE="Arial">, tel:+1 408 495 3756</FONT>
<BR><FONT COLOR="#000000" FACE="Times New Roman"> </FONT>
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