Hello Hector,
I know that the latest version on CCA does NOT include the 7926, but the latest IOS does list the 7926. So this phone should work, but would need to be configured using CLI. Also, I do not believe that the bar coding capabilities would work as the UC560 is running Call Manager Express, and not Unified Communications Manager. With the UC560, you would likely get phone capabilities only.
Thank you,
Darren