I have 3 handsets (2 from T-Hub1), and rather than having them named "handset 1" etc, and to use as an intercom system, I thought it might be best to name them after their locations.
The way to do this doesn't seem all that difficult, although I couldn't find documentation on it.
Here's how I did it:
On the T-Hub 2 HANDSET, press INT for intercom, and make sure you call each phone one at a time if you are a bit like me and forgetful of which is which
ON the T-Hub 2 HANDSET, go to settings, System, Handset Name and simply edit the names.
The names propagate back to the T-Hub 2 tablet, and you can see them in brackets.
The T-Hub 2 handset can identify each of the phones/tablets.
The T-Hub 1 handsets don't seem to have the capacity for renaming themselves, so any ideas would be appreciated.
However, I tried them all out, and the Intercom function works, even T-Hub to T-Hub. Obviously, it's NOT OFFICIALLY SUPPORTED by Telstra, but if you want to try go ahead.
Why do it?
Well, for one thing, if one of your idiot relatives leaves a phone somewhere and you can't find it, you at least have the option of dialling it internally, and you might find it before the battery dies.