Compaq AA-Q88CE-TE System Manager's Manual page 113

Examples
This command requests the backend transaction IDs for the facility ''CASHFAC''.
RTR> CALL RTR_REQUEST_INFO/CHANNEL=INFOCHAN
/INFCLA="btx"/SELITM=fac_id/SELVAL=CASHFAC
/GETITMS=tb_txdx.tx_id
The information can then be viewed by repeatedly executing the following
command until the channel is closed.
RTR> CALL RTR_RECEIVE_MESSAGE/CHANNEL=INFOCHAN/TIMEOUT
CALL RTR_REQUEST_INFO
RTR Command Line Interface 6–37