i just wanted to confirm that the CTS software upgrade through CUCM need to be done as below
CUCM os admin > install/upgrade >> TFTP file management then upload it from there using directory as /
because if i use install/upgrade then > software install option using FTP it dosen't take as the extension of the CTS firmware is .sbn
"it need to be uploaded it through TFTP File management option "
is that right !!!