diff --git a/tubes/inc/tubes/collaboration.hxx b/tubes/inc/tubes/collaboration.hxx
index 18a64f0c2708..8aef9378bae6 100644
--- a/tubes/inc/tubes/collaboration.hxx
+++ b/tubes/inc/tubes/collaboration.hxx
@@ -32,8 +32,8 @@ public:
     virtual void SaveAndSendFile( TpContact* pContact ) const = 0;
     virtual void StartCollaboration( TeleConference* pConference ) = 0;
 
-    TUBES_DLLPRIVATE TeleConference* GetConference() const;
     TUBES_DLLPRIVATE sal_uInt64 GetId() const;
+    TUBES_DLLPRIVATE void Invite( TpContact* pContact ) const;
 
     void DisplayContacts();
     void SendFile( TpContact* pContact, const OUString& rURL ) const;
diff --git a/tubes/source/collaboration.cxx b/tubes/source/collaboration.cxx
index 65c24c546ec3..c957091cf042 100644
--- a/tubes/source/collaboration.cxx
+++ b/tubes/source/collaboration.cxx
@@ -26,16 +26,20 @@ Collaboration::~Collaboration()
         mpConference->close();
 }
 
-TeleConference* Collaboration::GetConference() const
-{
-    return mpConference;
-}
-
 sal_uInt64 Collaboration::GetId() const
 {
     return reinterpret_cast<sal_uInt64> (this);
 }
 
+void Collaboration::Invite( TpContact* pContact ) const
+{
+    if (mpConference)
+    {
+        mpConference->invite( pContact );
+        SaveAndSendFile( pContact );
+    }
+}
+
 void Collaboration::SendFile( TpContact* pContact, const OUString& rURL ) const
 {
     mpConference->sendFile( pContact, rURL, NULL, NULL );
diff --git a/tubes/source/contacts.cxx b/tubes/source/contacts.cxx
index 1472773f1ec2..2a75f2350ff0 100644
--- a/tubes/source/contacts.cxx
+++ b/tubes/source/contacts.cxx
@@ -84,12 +84,7 @@ class TubeContacts : public ModelessDialog
             pAC = static_cast<AccountContactPair*> (maList.FirstSelected()->GetUserData());
         if (pAC)
         {
-            if (mpCollaboration->GetConference())
-            {
-                TpContact* pContact = pAC->second;
-                mpCollaboration->GetConference()->invite( pContact );
-                mpCollaboration->SaveAndSendFile( pContact );
-            }
+            mpCollaboration->Invite( pAC->second );
         }
     }