2. A video conversational communication network in accordance with claim 1 wherein said one message switching interface means comprises at least one host computer network control means and a plurality of keystation terminal controller interface means operatively connected between said keystations and said one host computer network control means with at least one keystation being operatively connected to one keystation terminal controller interface means for each of said plurality of keystation terminal controller interface means, said host computer network control means comprising said message routing logic means and said storage means operatively connected thereto, each of said keystation terminal controller interface means comprising said display control logic means and said local video display storage means for locally storing video conversational textual data for providing a video display thereof to at least one of said keystations connected to said keystation terminal controller interface means, said keyboard means providing said unique calling signals to said keystation terminal controller interface means, said keystation terminal controller interface means comprising means for providing said calling signals to said one host computer network control means and for receiving said calling signals therefrom for completing a call to said one connected keystation.
2. A video conversational communication network in accordance with claim 1 wherein said one message switching interface means comprises at least one host computer network control means and a plurality of keystation terminal controller interface means operatively connected between said keystations and said one host computer network control means with at least one keystation being operatively connected to one keystation terminal controller interface means for each of said plurality of keystation terminal controller interface means, said host computer network control means comprising said message routing logic means and said storage means operatively connected thereto, each of said keystation terminal controller interface means comprising said display control logic means and said local video display storage means for locally storing video conversational textual data for providing a video display thereof to at least one of said keystations connected to said keystation terminal controller interface means, said keyboard means providing said unique calling signals to said keystation terminal controller interface means, said keystation terminal controller interface means comprising means for providing said calling signals to said one host computer network control means and for receiving said calling signals therefrom for completing a call to said one connected keystation. 3. A video conversational communication network in accordance with claim 2 wherein said one message switching interface storage means comprises means for retrievably storing a plurality of different ones of said contact lists for each of said associated keystations in said corresponding plurality of keystations, said different ones of said contact lists comprising different groups of said plurality of keystations in said network, each of said different ones of said contact lists being retrievable by said message routing logic means in response to a different unique contact list calling signal provided from said keyboard means which created said plurality of different ones of such contact lists, whereby a plurality of different contact lists may be selected by a single keystation.