See also:

Capacities
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DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purp ...

Supplementary text messages
Addition information, such as on the cause of a fault or the required action, can be called up via Check Control. In urgent cases, this information will be shown as soon as the corresponding la ...