I am linking my non-NAV TCH with my SE w810i (AT&T). When linked, the
phone's signal strength is displayed on the radio's screen. The problem is the strength value never appears to update. It always seems to show whatever it was at the moment the two devices link. My previous phone, a Motorola, updated the signal strength every few seconds so I could always tell when I was in a bad reception area without needing to look at the phone.
Has anybody else seen this behavior? What model phone are you using?