[SR-Users] Location Fields Address vs Received

[Daniel Greenwald]

On a usrloc record there is an Address field and Received field. The
Received field is sometimes not set. What causes it to be not set and what
is the difference between the two fields. Sorry if this is a dumb question,
I looked at documentation but couldn't find it spelled out. Here is are 2
examples from kamcmd ul.dump:
{
       AoR: utkcf9b6h3 at ata.phaxio.com
       Contacts: {
               Contact: {
                       Address: sip:utkc4ff9b6h3 at 69.78.34.56:4615;transport=tcp

                       Expires: 42
                       Q: -1.000000
                       Call-ID: d1c314305df3d342 at 192.168.0.3
                       CSeq: 129173
                       User-Agent: OBIHAI/OBi200-3.2.2.5898
                       Received: [not set]
                       Path: [not set]
                       State: CS_NEW
                       Flags: 0
                       CFlags: 0
                       Socket: tcp:10.0.22.254:5060
                       Methods: 7839
                       Ruid: uloc-5fbdd369-491e-4
                       Instance:
<urn:uuid:00000000-0000-0000-0000-9cadef62b3da>
                       Reg-Id: 0
                       Server-Id: 0
                       Tcpconn-Id: 58
                       Keepalive: 0
                       Last-Keepalive: 1606317577
                       Last-Modified: 1606317577
               }
       }
}




 Contact: {
                Address: sip:mfjngfd272av at 192.168.0.106:5060
                Expires: 30
                Q: -1.000000
                Call-ID: 67413de375b2e76c at 192.168.0.106
                CSeq: 146320
                User-Agent: OBIHAI/OBi300-3.2.2.5921
                Received: sip:70.34.56.78:5060
                Path: [not set]
                State: CS_NEW
                Flags: 0
                CFlags: 64
                Socket: udp:10.0.22.254:5060
                Methods: 7839
                Ruid: uloc-5fbdd369-490e-efa3
                Instance: <urn:uuid:00000000-0000-0000-0000-9cadef810877>
                Reg-Id: 0
                Server-Id: 0
                Tcpconn-Id: -1
                Keepalive: 1
                Last-Keepalive: 1606314719
                Last-Modified: 1606314719
            }
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