T27P + EHS36 + Jabra Pro 9460

[DITNZ]

Hi All,
I am trying to get this wireless headset to work properly.
The user should be able to touch the button on the headset to answer and to hang up calls but this function is not working.

I have spoken to the local Yealink Distributor and he has asked me to load on the current firmware from the UK V80-UK 45.80.23.1 I did have the latest from the Yealink.com website T27-45.80.0.70

Firmware for the EHS
Ext

EHS Hardware Version 48.0.0.0

EHS Firmware Version 3.16.0.0

Can anyone offer some words of wisdom as I have spent far too long on this and it is frustrating.

The headset itself is working just the remote answer not working. I belive this wired correctly.
There still is a RJ11 to RJ11 going between the phone and the headset.
There is an RJ45 to RJ45 going between the headset and EHS36
There is a RJ11 to RJ12? Going between the phone EXT port to EHS36

Help.
Thanks
Regards
John Mitchell
Auckland
New Zealand