Operating system name and version: FreeBSD 8.0 -- RELEASE
Version of smsd: 3.1.5
Smsd installed from: FreeBSD Ports Collection
Name and model of a modem / phone: Siemens C55 connected via original USB Data-cable
Interface: USB

Hello!
Sometimes modem did not work and sms tools write in log file errors like
2010-07-25 02:33:53,3, GSM2: Could not send character A, cause: Device not configured 2010-07-25 02:34:04,3, GSM2: Could not send character , cause: Device not configured 2010-07-25 02:34:14,3, GSM2: Could not send character A, cause: Device not configured 2010-07-25 02:34:24,3, GSM2: Could not send character , cause: Device not configured 2010-07-25 02:34:34,3, GSM2: Could not send character A, cause: Device not configured 2010-07-25 02:34:44,3, GSM2: Could not send character , cause: Device not configured 2010-07-25 02:34:55,3, GSM2: Could not send character A, cause: Device not configured

How i can restart smsd auto-mode if errors above found in log file?
Thanks for help, and sorry for my bad English

You could define an alarmhandler. Create a script which detects that $6 contains "Could not send" and creates a "flag-file". Another script (running by cron) can monitor if the flag-file exists, and run /etc/init.d/sms3 restart if necessary.

There is also a modem setting keep_open = no available, in some cases it may help.

However, "Device not configured" comes from OS, and probably restarting smsd is not enough.