◆line@ - use business account to communicate with clients via broadcast messages, 1:1 chat, and timeline posts.  - any line users can create an account for free.  ◆communication  - send messages to all line users who added line@ as friend.  - use 1:1 chat with clients and auto reply when you're unavailable.  - you can post on line@ timeline.  - account page is provided to promote detailed business info. ◆other features - premium id is provided to add a desired id.  - you can specify a sub admin for management.  - statistics is provided. * it is recommended to subscribe to mobile data plan since data charges may occur when wi-fi is not available.