You can use the message-switching transaction to direct output to a terminal or terminals other than your own. For more information on message switching, see CMSG--message switching. When a terminal to which you have directed a message is in TRANSCEIVE status, and is not involved with a transaction, and is not displaying pages, CICS displays the first page of that message.
However, if the terminal is in TRANSACTION status, you can display the first page only of a waiting message by entering CSPG, CSPG P/1, or just P/1. Here, you are using P/ as a paging command. If no page is waiting, you get the following message:
DFHTP4104 A paging request has been received but
there are no pages for display