In addition to link-up to the telephone or convergent voice/data network, DAKSpro also supports the link-up to a VoIP-based subsystem (e.g. to modern call systems in hospitals), and of up to 1000 directly connected SIP-based microphone units, PA couplers or SIP phones on the secondary connection side.

Terminals on the secondary connection side can be worked into the DAKSpro alarm processes (Broadcasts/Conferences), and can also activate these alarm processes. What is more, DAKSpro also serves as Gateway and with this function enables all calls between the subscribers of the PBX network to the secondary connection side, and vice versa.