The ISDN Integration Unit integrates existing Inmarsat-A / Inmarsat-B installations with the Inmarsat Fleet terminal providing a common presentation of the services to user side equipment.

Features include:

• Dynamic B channel allocation can select satellite terminals on availability.
  
• Preferential terminal selection on MSN or pre-defined cost basis.
  
• Offers fast and reliable V.25 Bis dialling on the Inmarsat-B
  
• Can be powered from AC or directly from the Satcom DC supply.
  
• Presents the MSD services on a NERA Inmarsat-B without additional hardware.
  
• Offers a console port with detailed ISDN and call progress analysis.
  
• Offers easy bulkhead or surface mounting.