Skype for Business offers various softphone features to its users. Calls can be transfered, hold or toggled. Furthermore, all known Unified Communications features like video conferencing, conference calls and screensharing (only Windows) are available depending on the tariff chosen.
Further documentation and information from Microsoft regarding function, features and installation can be found here.
Call transfers, call forwarding and similar features should be defined in Ncontrol or the administration portal to ensure a smooth operation of such functions.