From page 40 of the
OBi Device Administration Guide:
Reboot Reason Codes
0: Reboot on Power Cycle
1: Operating System Reboot
2: Reebot after Firmware Update via provisioning or phone (***6)
3: Reboot after New Profile Invoked
4: Reboot after Parameter Value Change or Firmware has changed and invoked via device web page
5: Reboot after Factory Reset using the OBi device hardware pin
6: New Profile Invoked AND Profile URL Changed
7: Reboot from SIP Notify (Reserved)
8: Reboot from Telephone Port (IVR)
9: Reboot from Webpage - No change in parameter value(s) or firmware
10: Reboot During OBiTALK Signup
11: Reboot During OBiTALK Signup
12: Reboot after DHCP server offers IP, GW-IP and/or Netmask different from what the OBi device is currently using
13: Reboot on Data Networking Link Re-establishment