文档名称文档密级28181平台对接接口详解1 信令接口1.1 平台注册l 下级平台主动向上级平台注册；l 注册鉴权信息（用户名和密码）由上级提供；l 举例说明：下级-上级REGISTER sip:62010000002000000001上级平台ID10.130.140.82:7100 SIP/2.0Call-ID: c82dee890ea56d9d332fe4a5dbd2772c10.129.4.21CSeq: 1 REGISTERFrom: ;tag=5923_661_2647061To: Max-Forwards: 70Contact: Expires: 3600Via: SIP/2.0/UDP 10.129.4.21:5080;branch=z9hG4bK2647061_661_55795848069639126081Content-Length: 0上级-下级SIP/2.0 401 UnauthorizedVia: SIP/2.0/UDP 10.129.4.21:5080;branch=z9hG4bK2647061_661_55795848069639126081From: ;tag=5923_661_2647061To: ;tag=316765889Call-ID: c82dee890ea56d9d332fe4a5dbd2772c10.129.4.21CSeq: 1 REGISTERWWW-Authenticate: Digest realm=1234, nonce=7104983f5477dd30a65167b28553df65, opaque=f10efb1af3e8a362bcda7465284073ce, algorithm=MD5User-Agent: HikvisionExpires: 3600Content-Length: 0下级-上级REGISTER sip:6201000000200000000110.130.140.82:7100 SIP/2.0Call-ID: c82dee890ea56d9d332fe4a5dbd2772c10.129.4.21CSeq: 2 REGISTERFrom: ;tag=5923_661_2647061To: Max-Forwards: 70Contact: Via: SIP/2.0/UDP 10.129.4.21:5080;branch=z9hG4bK2647061_661_19459966820285136301Authorization: Digest username=admin上级平台提供鉴权信息时指定的用户。,realm=1234,nonce=7104983f5477dd30a65167b28553df65,uri=sip:6201000000200000000110.130.140.82:7100,response=ceb3a346523335fb0c6d66d24a7e77b5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=f10efb1af3e8a362bcda7465284073ceExpires: 3600Content-Length: 0上级-下级SIP/2.0 200 OKVia: SIP/2.0/UDP 10.129.4.21:5080;branch=z9hG4bK2647061_661_19459966820285136301From: ;tag=5923_661_2647061To: ;tag=300030239Call-ID: c82dee890ea56d9d332fe4a5dbd2772c10.129.4.21CSeq: 2 REGISTERContact: User-Agent: HikvisionDate: 2013-07-27T14:45:39Content-Length: 01.2 平台心跳保活l 下级平台定期向上级平台发心跳消息；l 定期时间可配置，上下级配置一致；l 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；l 下级平台连续三次未收到心跳响应，则认为上级平台离线；l 举例说明： 下级-上级MESSAGE sip:6201000000200000000110.130.140.82:7100 SIP/2.0Call-ID: 69c20964c5c9a8f0cc6cc5a7381423d510.129.4.13CSeq: 1 MESSAGEFrom: ;tag=0673_661_2850021To: Max-Forwards: 70Content-Type: application/XmlVia: SIP/2.0/UDP 10.129.4.13:5080;branch=z9hG4bK2850021_661_35032844903563514200Content-Length: 138Keepalive4362010201002000000001下级平台IDOK上级-下级SIP/2.0 200 OKVia: SIP/2.0/UDP 10.129.4.13:5080;branch=z9hG4bK2850021_661_35032844903563514200From: ;tag=0673_661_2850021To: ;tag=1421372822Call-ID: 69c20964c5c9a8f0cc6cc5a7381423d510.129.4.13CSeq: 1 MESSAGEContent-Length: 01.3 平台设备共享l 下级平台将设备共享给上级平台，共享关系临时保存在本地数据库；l 下级平台收到上级平台的目录查询消息时，返回共享给该上级平台的所有共享设备信息；l 上级平台收到目录查询响应结果后，根据设备编码或自定义方式给设备建立目录；l 上级平台最好支持定期查询目录和手动查询目录功能，以便及时获取到下级平台新共享的设备；l 举例说明 上级-下级上级向下级发送目录查询请求MESSAGE sip:6201020100200000000110.129.4.13:5080 SIP/2.0Via: SIP/2.0/UDP 172.16.3.26:7100;rport;branch=z9hG4bK3420267366From: ;tag=500485300To: Call-ID: 124958176CSeq: 20 MESSAGEContent-Type: Application/MANSCDP+xmlMax-Forwards: 70User-Agent: HikvisionContent-Length: 127Catalog8903查询消息的序号，下级平台返回的查询响应消息的序号必须和该序号一致，以便标识是该查询的响应。62010201002000000001下级平台ID（上级平台查询下级平台共享设备）下级-上级SIP/2.0 200 OKTo: ;tag=6840_661_3935882Via: SIP/2.0/UDP 172.16.3.26:7100;rport=7100;branch=z9hG4bK3420267366;received=10.130.140.82CSeq: 20 MESSAGECall-ID: 124958176From: ;tag=500485300Content-Length: 0下级-上级下级向上级返回目录查询响应MESSAGE sip:6201000000200000000110.130.140.82:7100 SIP/2.0Call-ID: 3c2375ee902cdef0c10aa9fe2001e4f910.129.4.13CSeq: 1 MESSAGEFrom: ;tag=7373_661_6058761To: Max-Forwards: 70Content-Type: application/MANSCDP+XMLVia: SIP/2.0/UDP 10.129.4.13:5080;branch=z9hG4bK6058761_661_61989619576009343309Content-Length: 746Catalog8903和查询请求的序号相同62010201002000000001下级平台ID