Assertion: collect | /r/HasProperty | possible
Facets:
value: in the past
type: TEMPORAL
value: as an operator-assisted call
type: MANNER
Source sentences:
text: In the past, collect calls were only possible as an operator-assisted call, but with the introduction of computer-based telephone dialing equipment, it is now possible to place a collect call without using an operator, which is called[where?] automated operator services (AOS) as opposed to Home Country Direct (HCD).
text: In the past, collect calls were only possible as an operator-assisted call, but with the introduction of computer-based telephone dialing equipment, it is now possible to place a collect call without using an operator, which is called automated operator services as opposed to Home Country Direct.