diff --git a/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java b/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java
index 1cf19dbf1..280dc3350 100644
--- a/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java
+++ b/src/net/java/sip/communicator/plugin/addrbook/macosx/MacOSXAddrBookContactQuery.java
@@ -248,18 +248,25 @@ private ContactDetail createContactDetail(
             String contactAddress,
             Object label)
     {
-        String p, l;
+        String c, l;
 
         switch (property)
         {
         case kABEmailProperty:
-            p = ContactDetail.CATEGORY_EMAIL;
+            c = ContactDetail.CATEGORY_EMAIL;
             break;
         case kABPhoneProperty:
-            p = ContactDetail.CATEGORY_PHONE;
+            c = ContactDetail.CATEGORY_PHONE;
+            break;
+        case kABAIMInstantProperty:
+        case kABICQInstantProperty:
+        case kABJabberInstantProperty:
+        case kABMSNInstantProperty:
+        case kABYahooInstantProperty:
+            c = ContactDetail.CATEGORY_INSTANT_MESSAGING;
             break;
         default:
-            p = null;
+            c = null;
             break;
         }
 
@@ -272,7 +279,7 @@ private ContactDetail createContactDetail(
                 l = null;
         }
 
-        return new ContactDetail(contactAddress, new String[] { p, l });
+        return new ContactDetail(contactAddress, c, new String[] { l });
     }
 
     /**
@@ -732,14 +739,14 @@ private ContactDetail setCapabilities(
 
         switch (property)
         {
-        case kABEmailProperty:
-            break;
         case kABAIMInstantProperty:
             supportedOpSets.add(OperationSetBasicInstantMessaging.class);
             preferredProtocols.put(
                     OperationSetBasicInstantMessaging.class,
                     ProtocolNames.AIM);
             break;
+        case kABEmailProperty:
+            break;
         case kABICQInstantProperty:
             supportedOpSets.add(OperationSetBasicInstantMessaging.class);
             preferredProtocols.put(
@@ -756,6 +763,9 @@ private ContactDetail setCapabilities(
                     OperationSetBasicTelephony.class,
                     ProtocolNames.JABBER);
             break;
+        case kABPhoneProperty:
+            supportedOpSets.add(OperationSetBasicTelephony.class);
+            break;
         case kABMSNInstantProperty:
             supportedOpSets.add(OperationSetBasicInstantMessaging.class);
             preferredProtocols.put(
@@ -768,9 +778,6 @@ private ContactDetail setCapabilities(
                     OperationSetBasicInstantMessaging.class,
                     ProtocolNames.YAHOO);
             break;
-        case kABPhoneProperty:
-            supportedOpSets.add(OperationSetBasicTelephony.class);
-            break;
         default:
             break;
         }
diff --git a/src/net/java/sip/communicator/service/contactsource/ContactDetail.java b/src/net/java/sip/communicator/service/contactsource/ContactDetail.java
index 33f996c4e..56c1ef1af 100644
--- a/src/net/java/sip/communicator/service/contactsource/ContactDetail.java
+++ b/src/net/java/sip/communicator/service/contactsource/ContactDetail.java
@@ -42,8 +42,14 @@ public class ContactDetail
     public static final String CATEGORY_EMAIL = "Email";
 
     /**
-     * The standard/well-known label of a <tt>ContactDetail</tt> representing a
-     * phone number.
+     * The standard/well-known category of a <tt>ContactDetail</tt> representing
+     * a contact address for instant messaging.
+     */
+    public static final String CATEGORY_INSTANT_MESSAGING = "Instant Messaging";
+
+    /**
+     * The standard/well-known category of a <tt>ContactDetail</tt> representing
+     * a phone number.
      */
     public static final String CATEGORY_PHONE = "Phone";
 
@@ -127,7 +133,11 @@ public ContactDetail(String contactAddress)
      * convenience, <tt>null</tt> and duplicate values in the specified
      * <tt>String[]</tt> <tt>labels</tt> will be ignored i.e. will not appear in
      * the set of labels reported by the new <tt>ContactDetail</tt> instance
-     * later on.
+     * later on. Additionally, the <tt>category</tt> of the new
+     * <tt>ContactDetail</tt> instance will be implied from the specified
+     * <tt>labels</tt> by looking for the standard/well-known categories defined
+     * by the <tt>CATEGORY_XXX</tt> constants of the <tt>ContactDetail</tt>
+     * class
      */
     public ContactDetail(String contactAddress, String[] labels)
     {
@@ -144,6 +154,7 @@ public ContactDetail(String contactAddress, String[] labels)
                 if ((label != null) && !this.labels.contains(label))
                 {
                     if (label.equals(CATEGORY_EMAIL)
+                            || label.equals(CATEGORY_INSTANT_MESSAGING)
                             || label.equals(CATEGORY_PHONE))
                         category = label;
                     else
@@ -154,6 +165,44 @@ public ContactDetail(String contactAddress, String[] labels)
         this.category = category;
     }
 
+    /**
+     * Initializes a new <tt>ContactDetail</tt> instance which is to represent a
+     * specific contact address and which is to be optionally labeled with a
+     * specific category and a specific set of labels.
+     *
+     * @param contactAddress the contact address to be represented by the new
+     * <tt>ContactDetail</tt> instance
+     * @param category the category (such as one of the <tt>CATEGORY_XXX</tt>
+     * constants defined by the <tt>ContactDetail</tt> class, for example) to be
+     * assigned to the new <tt>ContactDetail</tt> instance
+     * @param labels the set of labels with which the new <tt>ContactDetail</tt>
+     * instance is to be labeled. The labels may be arbitrary and may include
+     * any of the standard/well-known labels defined by the <tt>LABEL_XXX</tt>
+     * constants of the <tt>ContactDetail</tt> class. For the sake of
+     * convenience, <tt>null</tt> and duplicate values in the specified
+     * <tt>String[]</tt> <tt>labels</tt> will be ignored i.e. will not appear in
+     * the set of labels reported by the new <tt>ContactDetail</tt> instance
+     * later on.
+     */
+    public ContactDetail(
+            String contactAddress,
+            String category, String[] labels)
+    {
+        // contactAddress
+        this.contactAddress = contactAddress;
+        // category
+        this.category = category;
+        // labels
+        if (labels != null)
+        {
+            for (String label : labels)
+            {
+                if ((label != null) && !this.labels.contains(label))
+                    this.labels.add(label);
+            }
+        }
+    }
+
     /**
      * Sets a mapping of preferred <tt>ProtocolProviderServices</tt> for
      * a specific <tt>OperationSet</tt>.