TekSIP 4.1.3

TekSIP is a SIP Registrar and Proxy. TekSIP tested on Microsoft Windows (Vista, Windows 7/8/10, 2008-2019 Server). TekSIP complies with RFC 3261, RFC 3263, RFC 3311, RFC 3581 and RFC 3891. It supports NAT traversal, UPnP and ENUM. Please see...