Forum:Key-activated VoIP?

I was trying to create a key-bind to activate VoIP when pressed, deactivate when released, I've end up with this:

Bindings=(Name="V",Command="bHasVoiceEnabled=true | OnRelease bHasVoiceEnabled=false",Control=False,Shift=False,Alt=False)

Has it any chanse to work? Anything I can improve? Something? Help :(