/usr/include/recon/ is in librecon-1.9-dev 1.9.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/recon/BridgeMixer.hxx
/usr/include/recon/Conversation.hxx
/usr/include/recon/ConversationManager.hxx
/usr/include/recon/ConversationManagerCmds.hxx
/usr/include/recon/ConversationParticipantAssignment.hxx
/usr/include/recon/ConversationProfile.hxx
/usr/include/recon/DefaultDialogSet.hxx
/usr/include/recon/DtmfEvent.hxx
/usr/include/recon/FlowManagerSipXSocket.hxx
/usr/include/recon/HandleTypes.hxx
/usr/include/recon/LocalParticipant.hxx
/usr/include/recon/MediaEvent.hxx
/usr/include/recon/MediaInterface.hxx
/usr/include/recon/MediaResourceCache.hxx
/usr/include/recon/MediaResourceParticipant.hxx
/usr/include/recon/MediaStreamEvent.hxx
/usr/include/recon/Participant.hxx
/usr/include/recon/ReconSubsystem.hxx
/usr/include/recon/RelatedConversationSet.hxx
/usr/include/recon/RemoteParticipant.hxx
/usr/include/recon/RemoteParticipantDialogSet.hxx
/usr/include/recon/SipXHelper.hxx
/usr/include/recon/UserAgent.hxx
/usr/include/recon/UserAgentClientSubscription.hxx
/usr/include/recon/UserAgentCmds.hxx
/usr/include/recon/UserAgentDialogSetFactory.hxx
/usr/include/recon/UserAgentMasterProfile.hxx
/usr/include/recon/UserAgentRegistration.hxx
/usr/include/recon/UserAgentServerAuthManager.hxx
/usr/include/recon/sdp/
/usr/include/recon/sdp/Sdp.hxx
/usr/include/recon/sdp/SdpCandidate.hxx
/usr/include/recon/sdp/SdpCandidatePair.hxx
/usr/include/recon/sdp/SdpCodec.hxx
/usr/include/recon/sdp/SdpHelperResip.hxx
/usr/include/recon/sdp/SdpMediaLine.hxx