Give SBI phone a missed call feature, as this is the only landline phone that likely actually matters in game, apart from maybe SP and that calls directly to their phone, aka just give us a modern phone system like the ones u see in officers that allow u to see missed calls, as there have been times i've just drove out of VBI base hear the phone ring, do a u turn and by the time i get into the room its gone and i have no idea who was calling.