28181平台对接接口详解.docx

文档介绍：28181平台对接接口详解信令接口平台注册下级平台主动向上级平台注册;注册鉴权信息(用户名和密码)由上级提供;举例说明:下级--->上级REGISTERsip:00001上级平台******@SIP/-ID:******@CSeq:1REGISTERFrom:<sip:00001下级平台ID@;tag=5923_661_2647061To:<sip:******@Max-Forwards:70Contact:<sip:******@Expires:3600Via:SIP/;branch=z9hG4bK2647061_661_0081Content-Length:0上级--->下级SIP/:SIP/;branch=z9hG4bK2647061_661_0081From:<sip:00001@;tag=5923_661_2647061To:<sip:00001@;tag=9Call-ID:******@CSeq:1REGISTERealm="1234",nonce="7104983f5477dd30a65167b28553df65",opaque="f10efb1af3e8a362bcda73ce",algorithm=MD5User-Agent:HikvisionExpires:3600Content-Length:0下级--->上级REGISTERsip:******@SIP/-ID:******@CSeq:2REGISTERFrom:<sip:00001@;tag=5923_661_2647061To:<sip:******@Max-Forwards:70Contact:<sip:******@Via:SIP/;branch=z9hG4bK2647061_661_6301Authorization:Digestusername="admin"上级平台提供鉴权信息时指定的用户。,realm="1234",nonce="7104983f5477dd30a65167b28553df65",uri="sip:00001@",response="ceb3a5fb0c6d66d24a7e77b5下级平台根据上级平台返回的挑战字和上级平台的鉴权信息,用MD5算法计算得到。",algorithm=MD5,opaque="f10efb1af3e8a362bcda73ce"Expires:3600Content-Length:0上级--->下级SIP/:SIP/;branch=z9hG4bK2647061_661_6301From:<sip:00001@;tag=5923_661_2647061To:<sip:00001@;tag=9Call-ID:******@CSeq:2REGISTERContact:<sip:******@User-Agent:HikvisionDate:2013-07-27T14:45:39Content-Length:0平台心跳保活下级平台定期向上级平台发心跳消息;定期时间可配置,上下级配置一致;上级平台连续三次未收到下级心跳消息,则认为下级平台离线;下级平台连续三次未收到心跳响应,则认为上级平台离线;举例说明:下级--->上级MESSAGEsip:******@SIP/-ID:******@CSeq:1MESSAGEFrom:<sip:00001@;tag=0673_661_2850021To:<sip:******@Max-Forwards:70Content-Type:application/XmlVia:SIP/;branch=z9hG4bK2850021_661_4200Content-Length:138<?xmlversion=""?><Notify> <CmdType>Keepalive</CmdType> <SN>43</SN> <DeviceID>00001下级平台ID</DeviceID> <Status>OK</Status></Notify>上级--->下级SIP/:SIP/;branch=z9hG4bK2850021_661_4200From:<sip:00001@;tag=0673_661_2850021To:<sip:00001@;tag=22Call-ID:5a7381423d5