From a telephony side, Digital Sets and IP Sets pretty much act the exact same way under the BCM.
Each set is assigned with a DN so pretty much if it can be done with a normal set, it can be done with an IP set (and vice versa).
So you can program a T7316e + T24 KIM with a DN button of an IP phone, as well as you can configure an IP Phone + KEM with a DN button of a T7316e phone.