ANT0.1.13

ANT is a desktop ISDN telephony application written for GNU/Linux. It supports OSS (Open Sound System) and I4L (ISDN4Linux). Its user interface was made for GTK+ 2.x (GIMP toolkit).

It directly interfaces OSS and ISDN devices, so there is no need to install extra software or hardware like PBX (Private Branch Exchange) or telephony cards, if you've got direct access to an audio capable ISDN card (teles or HiSax chipset, e.g. AVM Fritz Card) and a full duplex soundcard or two sound devices.