問題文
Control Hub offers two ways of handling numbers that Webex Calling does not recognize when trunks and route groups reach a premises PBX. Which of them is the default, if either of them is, and what is the other one there for?
選択肢
- The two differ only in the format of the caller identity, so the choice has no bearing on where a call that is not recognized ends up.
- Neither of the two is a default, and the choice has to be made before the first trunk can be saved, and it cannot be changed afterwards or undone.
- The standard way is the default and the recommended one, since it gives the best fit with an exchange on the premises, and the older way is kept for backward fit with the way a local gateway used to behave.
- The older way is the default, and the standard way has to be picked by hand once the organization has written its first dial plan.