TekConSer is a SIP (Session Initiation Protocol) conference server (Based on RFC 3261) runs under Windows (Vista, Windows 7/8/10, 2008-2019 Server). Simple, easy to use interface. Supports (Only) G.711 A - Mu law codecs. Supports UPnP for NAT traversal. You can also set external IP address manually. You can monitor active SIP calls in real-time and hangup selected calls in a conference. Supports registration of multiple conference IDs to SIP servers. TekConSer also provides a http interface.