IP One has developed an app where you can easily - without the use of codes - perform daily telephony functions, such as - see if a colleague is unemployed or not - send a text message or email to your colleague - put the phone on DND (do not disturb) or pause - forward your mobile - divert calls - make double calls so that 2 phones ring at the same time on incoming calls - sign up and unsubscribe to a queue - possibly with priority, i.e. if everyone else is busy - and more features