Common stuff, want to answer a call, pick a recipient, talk to the recipient, then either leave the call with the recipient or take it back.
If I use the TRANSFER button on the SNOM, I can't talk to the recpient, the call is transferred at ONCE to the target number.
I've tried referring to the Snom manual page on call transferring but it's written in an advanced form of gibberish I can't translate. :-)
Actually, the "with chat" mode of transferring is what I find on any other system, the "just dump it" mode is usually achieved by making a "with chat" call then just hanging up leaving it ringing on the target number.