Dial pad not showing on Skype for Business room system

I have newly setup a Lenovo Thinksmart hub for use with Skype for Business.

I have assigned a 'Meeting Room' licence and also a 'Domestic and International Calling plan'

On system restart, the dialpad option is available until the Skype has signed in then it disappears.

I can dial out numbers using the 'Start meeting', but hoped the dialpad would be visible all the time for making normal phone calls.

Also the system seems very buggy with the keyboard not wanting to pop up when clicking to add invitees