I don't have that exact firmware on my system, but based on other versions I've got, I'd assume a loadname of
SCCP894x.9-3-1-19
The way to find for sure, is go to https://x.x.x.x/cmplatform on your TFTP server, Software Upgrades -> TFTP File Management. Search for files with 894x in the name. Look for the file that ends with ".loads" and use it's name (excluding the .loads suffix)
GTG
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