IPCOMMS 1 Proxy Server true true Secondary Proxy Server false false Registrar Server true false Outbound Proxy Server true false SIP Domain Name false false Digest Authentication true false User Credentials false false Call Admission Controls false false Company Name false false Proxy Server G711ulaw 1 Upspeed G711 RFC 2833 101 cs3 ef true true false udp Fixed 5060 3600 true true Disable 2 10 100 false sip-ua Pre