While configuring the Russian locale on CME, I came across a problem where 7821 phones would not switch to the Russian locale. Turns out these phones look for a localization file with a different alias than the one created by the CME router when the locale is loaded and extracted.

The 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