--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-0BC9A9A1-DB99-5095-8390-E1C1B04D0080.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-0BC9A9A1-DB99-5095-8390-E1C1B04D0080" xml:lang="en"><title>Introduction</title><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>When you send an SMS message all of the characters in the message are encoded
+as 7-bit GSM code or Unicode Character Set-2 (UCS-2). The message is then
+sent in one or more Protocol Data Units (PDU). A PDU contains information
+about the control, address and data to deliver an SMS message. </p>
+<p>The 7-bit encoding cannot represent all characters. UCS-2 includes all
+of the characters within the Basic Multilingual Plane, but it reduces the
+number of characters in one PDU from 160 to 70. Users are often charged by
+the PDU. A message encoded using UCS-2 can be more expensive than the one
+encoded using 7-bit GSM. There are four types of SMS encodings to encode an
+SMS message: </p>
+<ul>
+<li id="GUID-B548C03F-BCCF-58EC-8043-844372B5A91E"><p><xref href="GUID-FE94596E-B5BB-51FE-BE38-069840323915.dita#GUID-FE94596E-B5BB-51FE-BE38-069840323915/GUID-F7D1E6C8-9605-57FA-9788-AF7FC72BD94C">7-bit GSM encoding</xref>  </p> </li>
+<li id="GUID-C486071F-F184-5DD8-BA4A-51444548DD38"><p><xref href="GUID-FE94596E-B5BB-51FE-BE38-069840323915.dita#GUID-FE94596E-B5BB-51FE-BE38-069840323915/GUID-918FF2E3-B9F4-5C61-8DBA-F9143DB16460">Lossy 7-bit encoding</xref>  </p> </li>
+<li id="GUID-EE33620C-7D69-5BDE-8CBB-ADE2D0CE6BAD"><p><xref href="GUID-FE94596E-B5BB-51FE-BE38-069840323915.dita#GUID-FE94596E-B5BB-51FE-BE38-069840323915/GUID-D2F0E6BE-932E-545D-A0C8-39017E3D67B4">16-bit Unicode encoding</xref>  </p> </li>
+<li id="GUID-1B9705DF-2187-5F43-9615-C43D58417A3C"><p><xref href="GUID-FE94596E-B5BB-51FE-BE38-069840323915.dita#GUID-FE94596E-B5BB-51FE-BE38-069840323915/GUID-93B3DDF2-8EB1-5853-9DFD-3ABF42ADCB40">National language encoding.</xref>  </p> </li>
+</ul>
+<p>The following character converters are used in the SMS encodings: </p>
+<ul>
+<li id="GUID-822C740E-9A27-5D82-BD68-B7094113B535"><p><xref href="GUID-0CD18555-07EB-545D-9D47-D69A6BE6D2C8.dita">Standard
+SMS Converter</xref>  </p> </li>
+<li id="GUID-E0633334-73B7-5A72-835B-080E78655703"><p><xref href="GUID-B1254526-3C72-59E7-88C0-667FC051379F.dita">Extended
+SMS Converter</xref>  </p> </li>
+<li id="GUID-87BA0ABD-13E7-58B8-8335-7BCE105AD68C"><p><xref href="GUID-738FADA9-E26F-53F1-A6D6-2E82019DDA1F.dita">Turkish
+National Language Support</xref>. </p> </li>
+<li><p><xref href="GUID-C524C3E8-D151-5AB2-8791-1342C297FFBB.dita">Portuguese National
+Language Support</xref></p></li>
+<li><p><xref href="GUID-4A9053C2-80ED-5FB7-B07D-E1DC5D965213.dita">Spanish National
+Language Support</xref></p></li>
+</ul>
+</conbody></concept>
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