Sure you could. But have you considered just using the hands-free answer feature? If a station is programmed as hands-free (station flag) and another station calls it will beep and then you have a 2-way intercom call. Be sure calling station does NOT have RING INTERCOM ALWAYS turned on, that over-rides HANDS FREE. Maybe by combining these two flags on sending and receiving stations you can get what you need. By the way, pressing # before dial;ing or pressing ext button over-rides HANDS FREE for one call only. And you can turn both features on and off with feature codes.