| Functional overview Nsoftphone Windows |  |  |
| Nsoftphone standard | Nsoftphone premium | |
| Encryption via SRTP (from version 8.0.0) | ✓ | ✓ |
| DND (Do not disturb) button | ✓ | ✓ |
| Selection of the input/output audio device | ✓ | ✓ |
| Adding, changing, deleting of contacts | ✓ | ✓ |
| Export and import of contacts via a CSV file | ✓ | ✓ |
| Defining individual contact groups | ✓ | ✓ |
| Call history (missed, placed and received calls) | ✓ | ✓ |
| Call control from Outlook via an Outlook AddIn | ✓ | ✓ |
| BFL's | - | ✓ |
| TAPI | - | ✓ |
| ActionURL's | - | ✓ |
| Access to the PBX phone book | - | ✓ |
| Switch between the Classic GUI and the Office GUI | - | ✓ |
| Automatic conferences | - | ✓ |
| Automatic call acceptance | - | ✓ |
| MWI | - | ✓ |
| Banned telephone numbers | - | ✓ |
| Recordings | - | ✓ |
| Practical operation via a knocking menu | - | ✓ |
| Defining individual hotkeys (key combination and hotkey dial) | - | ✓ |
| Drag & Drop feature for dialling telephone numbers, attended / unattended call forwarding | - | ✓ |
| Integration of function keys into the contacts directory | - | ✓ |
| Call control features | ||
| Call waiting/ toggling | ✓ | ✓ |
| Ad-hoc conference | - | ✓ |
| Accepting and ending calls via Plantronics and Sennheiser headsets | ✓ | ✓ |
| Mute and volume control via Plantronics headsets and Sennheiser headsets | ✓ | ✓ |
| Ignoring | ✓ | ✓ |
| Banning | ✓ | ✓ |
| Compatibility | ||
| Windows Vista, 7, 8 and 10 (32 & 64 bit) | ✓ | ✓ |
| Outlook 2016 (32bit & 64bit) | ✓ | ✓ |
| Outlook 2013 (32bit & 64bit) | ✓ | ✓ |
| Outlook 2010 (32bit & 64bit) | ✓ | ✓ |
| Outlook 2007 | ✓ | ✓ |
| Outlook 2003 | ✓ | ✓ |
| Outlook XP | - | ✓ |
| Outlook 2002 | - | ✓ |
| Outlook 2000 | - | ✓ |
Unlike the Nsoftphone premium client, the Nsoftphone standard client is included in the NFON Business tariff.
An upgrade to the Nsoftphone premium client is possible at any time and causes monthly costs. Prices can be found in the current price list.