Upgrade to the Minimum UNIStim Firmware 69—End—Upgrade to the Minimum UNIStim FirmwareThe IP Phone 1120E can be ordered with UNIStim Firmware installed orwith SIP Firmware installed. You can convert the firmware on an IP Phone1120E from UNIStim to SIP. To successfully convert the firmware fromUNIStim to SIP, the UNIStim Firmware version on your IP Phone 1120Emust be 0625C1H or higher.Identify the current version of UNIStim FirmwareFor a new IP Phone 1120E, follow Procedure 7 "Checking the UNIStimFirmware version on a new IP Phone 1120E" (page 69) to determine theversion number of the UNIStim Firmware on an IP Phone 1120E.For an IP Phone 1120E already in use, follow Procedure 8 "Checking theUNIStim Firmware version on an IP Phone 1120E already in use" (page70) to determine the version number of UNIStim Firmware on an IP Phone1120E.Procedure 7Checking the UNIStim Firmware version on a new IP Phone 1120EStep Action1 After assembling the IP Phone 1120E and turning it on, the displayon the IP Phone 1120E goes through the following sequence:• Nortel splash screen appears• Nortel sonic sound plays• Nortel banner appearsFollowing the Nortel banner, the firmware version appears in thedisplay (F/W version).2 Note the UNIStim Firmware version number and write it down.Compare the version number to the minimum-required UNIStimFirmware version (0625C1H).UNIStim Firmware version names contain numbers and letters.Use the last three characters in a version to compare the versionof UNIStim on an IP Phone 1120E (0625C1H) with the minimumrequired version for the upgrade. Note that C23 is greater than C1Hand C1B is less than C1H.SIP Firmware Release 1.1 for IP Phone 1120E AdministrationNN43112-300 02.03 Standard27 May 2008Copyright © 2008, Nortel Networks.