Fixes case where no protocol providers offer telephony support.

src/net/java/sip/communicator/impl/gui/main/contactlist/ContactListTreeCellRenderer.java

@@ -780,9 +780,15 @@ private void initButtonsPanel(UIContact uiContact)
 
         // for SourceContact in history that do not support telephony, we
         // show the button but disabled
+        List<ProtocolProviderService> providers
+            = GuiActivator.getOpSetRegisteredProviders(
+                OperationSetBasicTelephony.class,
+                null,
+                null);
+
         if (telephonyContact != null ||
-                uiContact.getDescriptor() instanceof SourceContact ||
-                hasPhone)
+            uiContact.getDescriptor() instanceof SourceContact ||
+            (hasPhone && providers.size() > 0))
         {
             constraints.anchor = GridBagConstraints.WEST;
             constraints.fill = GridBagConstraints.NONE;

src/net/java/sip/communicator/impl/gui/main/contactlist/MetaContactRightButtonMenu.java

@@ -532,7 +532,8 @@ private void init()
             sendSmsItem.setName("sendSms");
         }
 
-        if (callContactMenu.getItemCount() > 1 || hasPhones)
+        if (callContactMenu.getItemCount() > 1 ||
+            (hasPhones && callContactMenu.getItemCount() > 0))
         {
             this.add(callContactMenu);
         }