The technical services can be provided by way of phone-call, WeChat and on-line video, remote diagnosing, etc. all of these are very high efficient and workable for most of the routine technical problems. Same as operation on-site, remote operation of the equipment during commissioning is also workable via the on-line simulation software of the touch-screen with remote linkage. Besides, with your approval, the intelligent box from Tianjin Jointelligent Technology Co., Ltd with installed application software can be equipped, so that the remote diagnosing and trouble-shooting can be realized quickly.