Teams Client Log Codes

I'm trying to work out definitions of the various codes that can be found in Microsoft Teams client debug and calling log text files.  I would appreciate any information that would add to my knowledge on this subject.  Here's what I have so far:

Call States

0 = Notified?

1 = ?

2 = Connecting

3 = Connected

4 = Hold?

5 = Resume?

6 = Disconnecting

7 = Disconnected

8 = Conference?

9 = Early media

1001 = Transfer start?

1002 = Transfer failed?

1003 = Transfer successful?

1007 = Call park?

1008 = Call park?

1009 = Call Park Failed?

1011 = ?

Call Types

0 = One-to-one call?

? = One-to-one PSTN call?

12 = Consultative transfer?

Termination Reasons

1 = Local user initiated

3 = ?

10 = Declined

12 = Cancelled/rejected

32 = ?

48 = ?

50 = ?

51 = ?

Park Context

1 = ?

3 = ?

4 = ?

Any information that can further flesh this list out will be appreciated.