Extension name in Phone's LCD screen

Hi!

This is the first time I'm using hardphones, other than a siemens DECT. I'll be deploying 30 Thomson SpeedTouch ST2022, and my question is:

I've created an extension, with number 1001 and name "Test Extension". Is there any way of, using autoprovisioning, show the extension name in the phone's LCD screen? Of course in the autoprovisioning file I can put a "name" directive and that's what is shown on the Screen, but this is double-job: I'd like to show the extension name I wrote on Trixbox...

I only want to know if this is possible. I know that little people here is using ST2022 phones, but can this be done with Linksys, Sipura, GrandStream...?

Thanks!!