According to the manufacturer, BlueFRITZ! AP-ISDN bridges up to 100 meters with a maximum of 721 kBit/s and provides a maximum of seven PCs or other Bluetooth devices with access to the ISDN. All of AVM's known ISDN applications such as Internet access including channel bundling and data compression, data transfer, PC fax, answering machines or even video telephony can be used wirelessly via BlueFRITZ! AP-ISDN - provided the corresponding AVM software is running on the Bluetooth PC. However, this requires the special Bluetooth adapter BlueFritz! USB from AVM.