This is just Perfect for small to medium business telephone system needs. The Gigaset DX800 can plug directly to a Telkom Line (or a Telkom ISDN line with 2 calls at the same time), a Neotel device or even a Premicell. Then you still have 2 VoIP ports - That is a total of 4 concurrent calls !
The state of the art PABX Operators console ( Switchboard ) has it's own handset or can even take a Bluetooth headset !
Extensions are all Cordless and no wiring is required. Ranges of 50m (indoors) can be extended if required.
A really professional device that even includes linking to your Outlook, 1000 phone book entries, a telephone answering machine (actually 3 of these!), and a host of other really great features. The cherry on top ? --You can even record conversations !