Refer to below EOS/EOL notice to make a note of replacement Part Numbers. You might want to look the replacement part numbers for v9 first and then look for the replacement for part 10
http://www.cisco.com/c/en/us/products/collateral/unified-communications/7800-series-media-convergence-servers/eos-eol-notice-c51-730843.html
http://www.cisco.com/c/en/us/products/collateral/unified-communications/unified-communications-manager-callmanager/eos-eol-notice-c51-735216.html
For UCCX:
http://www.cisco.com/c/en/us/products/collateral/customer-collaboration/unified-contact-center-express/eos-eol-notice-c51-731138.html
http://www.cisco.com/c/dam/en/us/products/collateral/customer-collaboration/CCBUorderingguide.pdf
Regards
Deepak