diff -r f742655b05bf -r d38647835c2e voipplugins/svtlogging/src/svtphonenumbervalidator.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/voipplugins/svtlogging/src/svtphonenumbervalidator.cpp	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,99 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:
+*
+* Description:  
+*
+*/
+
+
+#include "svtphonenumbervalidator.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// SvtPhoneNumberValidator::IsValidNumber
+// ---------------------------------------------------------------------------
+//
+TBool SvtPhoneNumberValidator::IsValidNumber( const TDesC& aCandidate )
+    {
+    if ( aCandidate.Length() != 0 
+            && AreStartCharactersValid( aCandidate )
+            && ContainsValidCharacters( aCandidate ) )
+        {
+        return ETrue;
+        }
+    else
+        {
+        return EFalse;
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// SvtPhoneNumberValidator::ContainsValidCharacters
+// ---------------------------------------------------------------------------
+//
+TBool SvtPhoneNumberValidator::ContainsValidCharacters( 
+        const TDesC& aCandidate )
+    {
+    _LIT( KAllowedCharsInPhoneNumber, "0123456789*+pw#PW" );
+    
+    TLex input( aCandidate );
+    TPtrC validChars( KAllowedCharsInPhoneNumber );
+    while ( validChars.Locate( input.Peek() ) != KErrNotFound )
+        {
+        input.Inc();
+        }
+    
+    return ( !input.Remainder().Length() );
+    }
+
+
+// ---------------------------------------------------------------------------
+// SvtPhoneNumberValidator::AreStartCharactersValid
+// ---------------------------------------------------------------------------
+//
+TBool SvtPhoneNumberValidator::AreStartCharactersValid( 
+        const TDesC& aCandidate )
+    {
+    TBool isValidStart( ETrue );
+    
+    TChar firstChar  = '0';
+    TChar secondChar = '0';
+    TInt candidateLength( aCandidate.Length() );
+    if ( 0 < candidateLength )
+        {
+        firstChar = aCandidate[0];
+        firstChar.LowerCase();
+        }
+    
+    if ( 1 < candidateLength )
+        {
+        secondChar = aCandidate[1];
+        secondChar.LowerCase();
+        }
+    
+    if ( firstChar == 'p' || firstChar == 'w' )
+        {
+        isValidStart = EFalse;
+        }
+    
+    if ( ( firstChar == '+' && secondChar == '+' ) ||
+         ( firstChar == '+' && secondChar == 'p' ) ||
+         ( firstChar == '+' && secondChar == 'w' ) )
+        {
+        isValidStart = EFalse;
+        }
+    
+    return isValidStart;
+    }