Works with any PBX System. With the Konference you can now connect your teleconferencing unit directly to your office digital PBX, or multi-line phone system, eliminating the need for expensive dedicated phone lines or PBX adapters. The compact Konference is compatible with virtually all analog teleconferencing units and can be easily switched to assure reliable operation with most domestic and international phone systems. The Konexx Konference allows you to connect analog conference call units or direct-connect speakerphones to virtually any digital phone system. By interfacing with the telephone handset, this product lets you avoid the cost of installing dedicated analog lines.