The MyPBX Call Recording Add-on supplies the MyPBX with the option to record all inbound and outbound calls automatically, for example for training purposes. The recorded calls are stored in a directory on an external USB device or internally installed harddisk. It is also possible to store the recorded calls on a Windows network-disk. The MyPBX Call Recording Add-on is available on all MyPBX U-series and Yeastar S Series.