Squad to Squad Voicechat?

Hi, coming from other similar games i would like to know if there is, or will be implemented Squad to Squad voice comunication.

I haven't played the alpha, i heard there was team voice and proximity chat.

But, will i be able to call the heli pilot and ask for a ride, or warn the Tank driver they are running into an ambush?

Like, in "Squad", the Squad leader has a private voicechat with all the other Squad leaders.