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--- a/libupnpp/control/avtransport.cxx
+++ b/libupnpp/control/avtransport.cxx
@@ -47,6 +47,10 @@
 {
     const string::size_type sz(SType.size()-2);
     return !SType.compare(0, sz, st, 0, sz);
+}
+bool AVTransport::serviceTypeMatch(const std::string& tp)
+{
+    return isAVTService(tp);
 }
 
 static AVTransport::TransportState stringToTpState(const string& s)