We can remove the load commands if we don't need to upgrade the firmware.
Configure cnf file location to flash
Load firmware
Create phone configuration files
telephony-service cnf-file location flash: ! load 6921 SCCP69xx.8-5-3-0.loads load 6941 SCCP69xx.8-5-3-0.loads load 6961 SCCP69xx.8-5-3-0.loads load 7931 SCCP31.8-5-3S.loads load 7960-7940 P00308000500.loads load 7945 SCCP45.8-5-3S.loads load 7965 SCCP45.8-5-3S.loads load 7971 SCCP70.8-5-3S.loads load 7975 SCCP75.8-5-3S.loads ! create cnf-files
tftp-server flash:filename
voice register global tftp-path flash: ! load 7960-7940 P0S3-8-12-00 load 7945 SIP45.8-5-3S load 7965 SIP45.8-5-3S load 7971 SIP70.8-5-3S load 7975 SIP75.8-5-3S ! create profile
tftp-server flash:filename