I agree that US rules shouldn't be forced on all hams. So an on/off option would be good. But newcomers to this very cool mode need to be made aware somehow that VARA does not transmit callsigns required by some local licensing authorities. I didn't know that until Irad pointed it out above.

I'm finally getting around to posting in the forum on my request to add a forced station ID every X minutes, selectable by the operator. There are two issues I see. 1) Station identification as required by licensing authority (FCC in US requires ID every 10 minutes and at the end of the QSO). If VARA-HF doesn't include the transmitting station's callsign, that requires the operator to manually type an ID periodically. Or invoke it in a pre-canned message. 2) For the convenience of operators monitoring a QSO to know who is connected to whom so that when the QSO is over, you could call one of the stations. That currently is not possible because callsigns aren't displayed in the monitor window. Question: how often are call signs transmitted in the VARA-HF protocol? (Apart from VarAC?) Only upon initial connection?