How to turn on the trumpet display when it is off?

The display of my trumpet is off, that is, off. You can turn it on at any time by pressing and holding the on key for a few seconds. When the user cancels the main number in Unicom's business hall, he can cancel all the wo trumpets bound by the main number at the same time. If you cancel or transfer the main number in Unicom business, the corresponding wo trumpet can also be cancelled.

Commentary on My Trumpet

Handle value-added services. As for the Woxiao secondary card, because Woxiao belongs to the regular mobile phone number opened by the operator, if Woxiao handles the secondary card, it also belongs to the Woxiao secondary card recognized by the operator and provided by the operator in the process of using the Woxiao secondary card, so it is safe for Woxiao to handle the secondary card.

Unicom Wo trumpet is a product that adds one or more sub-numbers with up to four mobile phone numbers on the basis of the main number of the user's existing mobile phone number, so as to meet the needs of the user to communicate with different people in voice, short message and other calling and called parties. In addition to supporting domestic voice and point-to-point short message functions, the sub-number can receive short number short messages starting with 106, but the data function cannot be enabled.