Yeah; the 'voice' (or is it 'on voice'?) key on the ACP is not to remind you to switch back to ACARS, it is an audio notch filter you can switch in to reduce the level of the ident tone, as I say.
Sometimes I switch it in to try to improve bad comms transmissions too. It occasionally works, but not often.
The ACARS message on the ECAM memo EMIT refers to is something like 'VHF3 on voice', from memory.
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Last edited by Uplinker; 17th May 2013 at 09:00.