hi, i was wondering... is it possible to run AT Command on demand? so whenever we need a result of certain AT command, it can be stored in file or displayed in shell.

i need to get modem msisdn the way u mentioned before in this post

did SMS Tools Server support it? or do we need to use external script?

See the modem settings regular_run*. With regular_run_cmdfile you can run AT commands on demand.