BT Versatility
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The BT Versatility is a telephone PBX switchboard sold by BT and targeted at small businesses.
It has modular construction allowing a basic setup to be expanded as needed by clipping extra modules onto a backplane
The basic model starts off as a 2-line 8 extension unit, using either analog POTS lines or ISDN. There is a serial connection that can be used for call logging and configuration. It can either use standard telephones or proprietary feature phones.
Various modules expand features such as
- Voicemail
- VoIP
- On Hold music
