Experienced a wiered action on the way home. Was in radio mode, and had the radio muted - on the phone (yes hands free) and a TA kicked in.

The TA ignored the mute, and the mute icon remained displayed. Interestingly, if you then press mute, the mute icon toggled, and the sound muted.

Therefore, I believe that TA ignores the current position of the mute function, and is output in the normal way. But mute is just a toggle function sound on<->off and the icon is again just a toggle.

Fix? If a TA is meant to sound during a muted radio channel, then the Mute flag needs to be set to off during the TA and then reset to what the radio settings were after the TA is finsihed.