Telephone Hybrids

Audio Codecs



The Dual-7-kHz Audio Codec MAGIC DC7 XIP provides a LAN, an ISDN BRI and an X.21 interface. Two 7-kHz connections with different partners can be simultaneously established via ISDN or IP.

From software version 3.000 upwards MAGIC DC7 XIP provides the so-called ISDN/SIP Auto Mode. Using this mode the system detects automatically via which line interface (ISDN or LAN) a call is received.



  • ISDN, LAN and X.21 interface
  • G.711 (3.1 kHz) and G.722 (7 kHz) coding algorithms
  • Analogue and (optional) digital Audio interfaces
  • Headset interfaces with pre-amplifier, limiter and Auto-Ducking function for the microphone signal
  • Optional Mixer Software


Complete system operation is possible via the integrated front keypad with display. The intuitive user interface guarantuees a user-friendly operation. In the integrated telephone book, you can store a transmission mode together with each telephone number.

Alternatively, the system can be configured and controlled with the MAGIC DC7/AC1 Windows PC Software or the MAGIC DC7/AC1 LAN Windows PC Software. The LAN software allows simultaneous monitoring, configuration and control of up to 10 Audio Codecs within a network. Individual systems can be dynamically selected for Audio transmissions. System errors are automatically reported and filed.
Both Software Versions are included in the delivery.

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