How to implement telnet output to a file with date and time in the name?

Question

cmd/bat

It is necessary to somehow substitute the file name in the form of a date and time into the telnet f parameter in the script.
Those. something like this
telnet f now() 192.168.111.111
but it doesn't work like that. tried to substitute in the form of a variable, the same does not leave.
How can this be implemented?