AVM FRITZ!X USB 3.0 Wired ISDN access device

FRITZ!X USB 3.0 The version 3.0 of FRITZ!X USB, the ISDN PBX with a built-in ISDN controller, and with its accompanying ISDNWatch software is the combination product for ISDN which provides reliable protection against undesired connections, such as calls to expensive premium numbers. This ISDN product also saves energy with ACPI-enabled operating systems, and provides the first complete PC wake-up function in its class. The telephone convenience features include internal three-party conferences and charge information transmitted to the extension phones.