This feature provides the ability to integrate external employees into the call distribution from OpenScape Contact Center V10, so that a terminal device does not have to be provided at the OpenScape 4000 for each external employee. A login at a virtual extension (extension without physical terminal device) is possible. The external employee logs on to the virtual extension with Agent Portal Web and activates his or her external phone number as preferred device.

That means that an OSCC user (agent ONS) can use the OSCC Preferred Device (static OND) with OpenScape 4000 in such a way that there is no physical device on the ONS. That means there's only a device achievable on the OND but no device active on the ONS.