Is "/usr/bin/sscop" still relevant? (related to ATM)

[mj-mailinglist at gmx.de]

Is "/usr/bin/sscop" still relevant? The sscop tool implements the Q.2110 transport protocol, which is used in ATM-Networks.
The NATM framework was removed in April 2017, but sscop depends on netgraph (libngatm.so.4), so it seems to be independent from NATM.
 
The manpage refers to libunimsg(3), which does not exist, but unimsg(3) does.
It also depends on libngatm.so.4, which also does not have a man page.
 
So, is it still useful? The most documents i found about ATM are from the early 2000 to mid 2010s.
 
--
Martin