While configuring Russian locale on CME, I came across a problem where 7821 phones would not switch to Russian locale. Turns out these phones look for localization file with different alias than the one created by CME router when locale is loaded and extracted.
Default alias looks like this:
tftp-server flash:its/russia_sp-sip.jar alias SIP_Russian_Russia/sp-sip.jar
We need to add an additional alias like this:
tftp-server flash:its/russia_sp-sip.jar alias SIP_Russian_Russian_Federation/sp-sip.jar