Operating system name and version: altlinux 2.4
Version of smsd: 3-3.1.7beta
Smsd installed from: sources
Name and model of a modem / phone: sim300
Interface: serial


execute two queries at a time

#account balance
regular_run_cmd = AT+CUSD=1,"*111#"

and

# balance sms/minutes
regular_run_cmd = AT+CUSD=1,"*112#"

Did you mean that this does not work?

The modem setting regular_run_cmd can be used multiple times to define multiple commands, if the question was about the "feature request".