Gonzo, what’s the issue with modern Airbus types? We teach new pilots to use the OANS/ANF to report position on the runway (eg abeam N10E) etc if we require help during an RTO in LVO’s.
Our SOP is simply to call stopped on the runway once parking brake is set as we need time to diagnose the problem before deciding what if any assistance we need.
From my old company days, I thought it was a requirement in the UK to call entering, rolling and airborne?