SIP Trunk Registration Error?

Back again.

I think my SIP Trunk is not registering, I get the following in Asterisk Info…

SIP Registrations
Host dnsmgr Username Refresh State Reg.Time N 0531*007 120 Request Sent
1 SIP registrations.


Name/username Host Dyn Nat ACL Port Status
6001 (Unspecified) D N A 5060 UNKNOWN
HostcommOut/0531**** 5060 Unmonitored
2 sip peers [Monitored: 0 online, 1 offline Unmonitored: 1 online, 0 offline]

Can anyone advise if they can interpret anything from this…or if I can run something else to assist in diagnosis?