Assertion: phone system's line | /r/HasProperty | served by rsm
Facets:
value: for small wire centers
type: TRANSITIVE-OBJECT
value: usually
type: TEMPORAL
Source sentences:
text: However, for small wire centers, 400-4000 lines, that function was usually served by RSM's, a 5ESS "Remote SM", ORM's or Wired ORM's.