Dependent of it whether you use an ISDN-or a VoIP connection with the PBX / gateway, the following configurations are necessary.
The controllers can be marked "Active" and therewith configured for the use by ixi-UMS Business.
Channels reserved for receiving
Please determine here, how many channels shall be used for the reception exclusively. It is not possible to determine, which channels are reserved, because this is managed by the ixi-UMS Business Server independently.