When using a IC-2200H, if you want to connect to a distant repeater, or the ham with a D-STAR radio you are hearing, or seeing their call in your radio, you must enter the repeater callsign, or their callsign in the RPT 2 field. I forgot how to enter that.
The other question I had, related to a conference connection, where several repeaters(3) are tied into another freq on VHF, from any node (A,B,C) and to join the conversation, you must know the parameters of the callsign, that is entered into the system exactly, or your transmissions will not be heard.