98段通天边路: 发送的INVITE数据是这个，为什么回复401啊？ INVITE sip:[email protected]:5060 SIP/2.0\r\nVia: SIP/2.0/UDP 192.168.8.104:5061;rport=5061;branch=z9hG4bK790862409\r\nFrom: ;tag=226563056\r\nTo: \r\nCall-ID: [email protected]\r\nCSeq: 3 INVITE\r\nMax-Forwards: 70\r\nUser-Agent: eXosip/5.3.0\r\nContent-Length: 164\r\nContent-Type: APPLICATION/SDP\r\nContact: \r\nSubject: 34020000001320000002:0;34020000001320000001:0\r\nExpires: 600\r\n\r\nv=0\r\no=34020000001320000001 0 0 IN IP4 192.168.8.104\r\ns=Play\r\nc=IN IP4 192.168.8.104\r\nt=0 0\r\nm=video 8000 RTP/AVP 96\r\na=recvonly\r\na=rtpmap:96 PS/90000\r\ny=0100000001