Fly a letter offline What do you think?

Flying letter offline may be the other side of the phone downtime, and has not yet signed into the letter of the client, but also on the fly to set the "Do not receive SMS" setting, so that the other side of the letter is the status of the video card off-line while we send information to the other party is not received. Offline status is not receiving information.

Fly off the line may also be your friends have to write off the letter, will fly a letter to remove the business, such words, flying is also in the offline state, it is sure to receive the message.