| 摘要 |
20 The invention relates to a device (17) for remote maintenance and monitoring of a lift installation (1) with at least one input (18) for detection of first signals from a lift control (7) and/or from a sensor (8, 10, 11, 28, 29, 30, 31), with at least one output (15) of second signals to a telecommunications network (16, 24) and with at least one processor and a data memory, wherein a set of remote maintenance functions is stored in the data memory and wherein one of these remote maintenance functions is activatable.</SDOAB >
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