Blind / Attended Transfer via dss key

[Mattrix]

Ok -I am still having trouble. So I have decided to try configure these phone with out the Auto provision and simply upload a Config manually to the phone. I have defaulted the phone to Factory. I have then taken a config download with Factory settings. I have then gone and changed the Transfer type via DSS Key to Attended via the GUI and again taken a config download. I have opened both configs with Notepad++ and found that both configs are exactly the same regardless of config change as below:

[ Features-Transfer ]
semi-attend-transfer = 0
Semi-Attend-Trans-OnHook = 0
blind-tran-onhook = 0
transfer-on-conference-hang-up = 0
TransferModeViaDsskey = 0

Firstly, The TransferModeViaDSSkey should equal = 2 by default as it is set to Blind.

However, I have modified the Config file to Read TransferModeViaDsskey = 1, saved and then uploaded. Nothing changes as it stays blind transfer. I then export the Config and can see that the Config file shows the modification I have made?

If it is possible, could somebody please provide me with an example of a working phone that has this function changed via Auto provision or Config file?.