Difference between communication settings

[Redline]

Could someone please kindly explain the difference between:
1) Talk (hold)
2) Talk over radio (hold)
3) Push-to-talk
4) Toggle voice
under the "Common" controls group.

I understand that "Talk (hold)" refers to communicating to a nearby team member (i.e. local voice), whilst "Talk over radio (hold) refers to communicating via radio (i.e. channel chat). How how do these differ from 3 & 4.

[Fosty]

I'm not sure about push-to-talk (3), but toggle voice (4) would probably have you talking to nearby team members at all times without needing to press a key.

[Akibuua-FIN-]

1 and 2 both select their assigned channel and transmit voice as long as you hold the button down. 3 transmits (talks) on the channel you have previously selected (in this sense direct talk is a channel) as long as you hold the button down ( there is two more choices right under it in the settings that make the channel selection between direct talk/radio talk and short range radio/long range radio but pressing those does not send transmissions) and 4 means that first push opens the channel, second push closes the channel.

So it is just a different style of control, either you use button that both selects a channel and transmits on that channel or just one button that transmits and channel selection is done separately. And also between holding button down to transmit and one press to start transmitting, second press to stop transmitting.

And as you can see the defaults are set in a way that half are set for keyboard and half for controller. You can set them differently too, you can have both keyboard and controller command for talk over radio (hold) for example.

[Redline]

Thanks Akibuua for taking the time to answer so thoroughly. Very helpful.