11-04-2022, 02:26 AM
The WiModem232 can't respond to anything if it is offline! 
It has to be online to be able to answer a call, and the only time they will get the busy message is if there is already a current connection. Adding messages is not a problem, but I am not sure how/where you tell the WiModem232 to connect to something in order for it to be busy.
You could have a maintenance script (that temporarily changes the AT*BUSY message to whatever you want it to say, and then does a ATDTGOOGLE.COM:80). This would connect to google forever and people would get the new BUSY message. To go back to normal just do ATZ which restores the original string. No matter what you are going to have to do something that would tell the WiModem232 that you are in maintenance mode.
What you need really has nothing to do with "BUSY" because that does require a current connection. What you need is an auto-responder. This could be a new command that can put the WiModem232 into auto-answer mode and automatically send a message when a connection occurs, and immediately hangs up. This would require that you send a command to the WiModem232 to put it into this mode.
It has to be online to be able to answer a call, and the only time they will get the busy message is if there is already a current connection. Adding messages is not a problem, but I am not sure how/where you tell the WiModem232 to connect to something in order for it to be busy.You could have a maintenance script (that temporarily changes the AT*BUSY message to whatever you want it to say, and then does a ATDTGOOGLE.COM:80). This would connect to google forever and people would get the new BUSY message. To go back to normal just do ATZ which restores the original string. No matter what you are going to have to do something that would tell the WiModem232 that you are in maintenance mode.
What you need really has nothing to do with "BUSY" because that does require a current connection. What you need is an auto-responder. This could be a new command that can put the WiModem232 into auto-answer mode and automatically send a message when a connection occurs, and immediately hangs up. This would require that you send a command to the WiModem232 to put it into this mode.