We argue that communication is a two dimensional phenomenon and message passing and variable sharing disciplines represent only its spatial and temporal dimensions. Thus any model, e.g.: CSP or the pi Calculus, which selects one absolute discipline and derives other disciplines on top of it delivers, in our opinion, only a fragmented and distorted view of communication In the paper, we discuss a method of modelling the two-dimensional communication called multi-handshake which integrates synchronous communication as well as asynchronous message passing and variable sharing at one abstraction level.