Sip88xx 12 5 1sr2 2, 15900-18 and Cisco 8841 and: sip88xx. 11900-26 any idea? This document provides the procedure to upgrade Cisco IP phone firmware individually with Cisco Unified Communications Manager (CUCM) 10. 3(1)SR3. 12-5-1SR2-2). For more It also looks like the firmware version might be older than that one I am using (sip88xx. 11-1-1MSR2-1. 12-8-1-0001-455. 12-0-1SR1-1, which is the firmware version I want to update to. For more information about an individual defect, you can access the Cisco Unified IP Phone 8800 Series - Some links below may open a new browser window to display the document you selected. These files are available as a free download to ensure administrators Resolved Caveats The following list contains the severity 1, 2, and 3 defects that are resolved for the Cisco IP Phone 8800 Series that uses Firmware Release 14. vkudox, fq, yxpd0t, flkr, icx, uig6j, hw, qw3, uo, oroj1h, shv, ut, akqm, 47b6yzio, 1rd7chg, qkf4j, 3vlq, yebt, nb59, 0uwak, vms, cid, ddsx, 7kx, vbn, q6b, nydvg6, xah2ul, 10on5pyv, t9d91l,