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<TITLE>RE: [Megaco] Purpose Of Annex C</TITLE>
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<P><FONT SIZE=2>This has already been taken care of by the Implementor's Guide.</FONT>
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<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Preeti Sharma [<A HREF="mailto:preetis@lucent.com">mailto:preetis@lucent.com</A>]</FONT>
<BR><FONT SIZE=2>Sent: Wednesday, August 01, 2001 3:43 PM</FONT>
<BR><FONT SIZE=2>To: Taylor, Tom-PT [NORSE:B881:EXCH]</FONT>
<BR><FONT SIZE=2>Cc: 'megaco'; 'itu-sg16@mailbag.intel.com'</FONT>
<BR><FONT SIZE=2>Subject: Re: [Megaco] Purpose Of Annex C</FONT>
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<P><FONT SIZE=2>Tom,</FONT>
<BR><FONT SIZE=2> Should Echo Cancellation ( tag 100B C.1) also be on this list.</FONT>
<BR><FONT SIZE=2> Preeti.</FONT>
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<P><FONT SIZE=2>Tom-PT Taylor wrote:</FONT>
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<P><FONT SIZE=2>> Before last month's SG 16 meeting I raised the point of the proper use of</FONT>
<BR><FONT SIZE=2>> Annex C values. Today I discovered that we already have it covered. See</FONT>
<BR><FONT SIZE=2>> section 7.2.10, which states unequivocally that Annex C is for the Local and</FONT>
<BR><FONT SIZE=2>> Remote descriptors.</FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>> One of the open issues on the list is whether we can deprecate the Modem</FONT>
<BR><FONT SIZE=2>> descriptor. If we do so, the corresponding Annex C property can remain</FONT>
<BR><FONT SIZE=2>> there and I would remove mention of it from my SDP-TDM draft.</FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>> There were some other Annex C properties that I had proposed to remove</FONT>
<BR><FONT SIZE=2>> because they belonged in LocalControl. This wasn't done at the last SG 16</FONT>
<BR><FONT SIZE=2>> meeting because orderly procedure required list agreement plus alternative</FONT>
<BR><FONT SIZE=2>> packages to put them in. The specific items I would focus on are Mode (tag</FONT>
<BR><FONT SIZE=2>> 1002 in C.1), DialledN (tag 901F in C.9) and DiallingN (tag 9020 in C.9).</FONT>
<BR><FONT SIZE=2>> Mode is in LocalControl already, and the other two are covered by the NAS</FONT>
<BR><FONT SIZE=2>> package. I had also mentioned Gain (tag 100C in C.1) and Jitterbuff (tag</FONT>
<BR><FONT SIZE=2>> 100D in C.1) previously. At this point I'd say Gain might suitably be</FONT>
<BR><FONT SIZE=2>> specified by direction. Jitterbuff should be moved into RTP.</FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>> Tom Taylor</FONT>
<BR><FONT SIZE=2>> taylor@nortelnetworks.com</FONT>
<BR><FONT SIZE=2>> Ph. +1 613 736 0961 (ESN 396 1490)</FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>> _______________________________________________</FONT>
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