The snom ONE IP-PBX supports the monitoring of shared lines on snom phones. Until now, there has been a gap between the time the CO-line button on the snom phone is pressed and the actual selection of the port on the gateway. With the latest snom ONE version, Delta Aurigids (188.8.131.525), mapping buttons on the snom phone to an analog port on the NBE has been simplified. This exercise shows you how to configure shared lines for both outbound and inbound calling. For this exercise, a Sangoma NetBorderExpress gateway is used.