Hello all! While trying to add code in Yate to set some important parameters - for the telephony business - I noticed my changes are overwritten by OpenH323 / H323Plus. I reimplemented H323Connection::OnSendSignalSetup() and changed the Q.931 fields in setupPDU. Unfortunately the following code (in h323.cxx) undoes my changes: if (!OnSendSignalSetup(setupPDU)) return EndedByNoAccept; // Do this again (was done when PDU was constructed) in case // OnSendSignalSetup() changed something. setupPDU.SetQ931Fields(*this, TRUE); setupPDU.GetQ931().GetCalledPartyNumber(remotePartyNumber); Is there any solid reason why setupPDU.SetQ931Fields(*this, TRUE) is called? Its default parameters are overwriting the type, plan, presentation and screening of the numbers. I also need to set separate type of number on caller and called party numbers. My plan is to patch OpenH323 / H323Plus to delete the extra SetQ931Fields(). Do you see any unintended consequences of such a change? Regards, Paul Chitescu