For those wondering, SS7 is Signaling System No. 7.
Signaling System No. 7 is a set of telephony signaling protocols developed in the 1970s that is used to set up and tear down telephone calls on most parts of the global public switched telephone network.
Maybe it's time to upgrade...
Edit: Latest version, 03/93, is from March 1993.
I've found out the hard way: Running the script during startup, and running it using the proper user authorization, are two different things.