問題文
A user places a call from a mobile device that the cluster knows about. What do the mobility features arrange for that call?
選択肢
- The call is placed directly over the network of the cellular provider, since a device outside the enterprise has no route inwards until it has been answered.
- The call is drawn back through a gateway of the enterprise, since holding it there keeps the records and the features of the enterprise within reach of the user.
- The call is placed twice over, once inwards and once outwards, since the enterprise and the provider each have to see a call of their own in the records.
- The call is placed under the number of the mobile device, since the number that the far end sees has to match the device the call is coming from.