You can use those CAT commands to play pre-recorded messages on the ic-7300. (the sample for mixw software)
F1 CQ,{CAT1Hex FE FE 94 E0 28 00 01 FD}
F2 CQ x2,{CAT1Hex FE FE 94 E0 28 00 02 FD}
For mixw software would be the following T1 –
Just change the last 01 or 02 nr to the desired message.
