What do I need? (What requirements do I have to have to use an imp box?) May 11, 2022 16:20 Updated You need all the following components to use an imp box: Landline with Caller ID Smartphone (Apple or Android) Wi-Fi Internet Connection Related articles I have VoIP/Oooma/Comcast/Magic Jackbillybob internet, will imp work with them? Missed Calls: What if someone is trying to reach me from a different number than they usually call from? Adding someone to my Greenlist. How do I install my imp box? Multiple Users: i.e. a couple people share use of the landline in our house. How does imp handle that?