HandOff Transfer Option

Hi! Can we do a hand off option when transferring the call? There is a merge option but when a person who initiated it ended the call, the phone call ends altogether. Can we do it so that 3 phone calls is together on 1 line for a proper hand off and once the person who transferred the line can end his line alone and not disconnected other persons? This will be very helpful so the customer knows that we indeed connected him/her/them to other line and thus creating a more interactive and professional vibe.