I have Lionel's 6-11127 Legacy GS-4 Daylight, which has the early version of Legacy RailSounds. Using Lionel's iCab app, I can touch the CrewTalk dialogue button labeled Clear Inbound and hear the engineer say, "Am I clear to the station?" The tower responds, "Yes, 4436, you are clear inbound."
Until I used the iCab app, I had never heard this snippet of dialogue when using the CAB-2 remote. Even now, knowing that the engine's RailSounds has this exchange in its dialogue inventory, I cannot find a way to access it with the CAB-2. Do you know how?