Description The Dinstar MTG2000 DTU-4E1 is a card designed for the MTG2000 chassis, contains 4x E1/T1 Ports for PRI, SS7 and R2 MFC connections. KEY FEATURES 4 E1/T1 ports Up to 128 simultaneous calls ISDN30 PRI ISDN SS7 (optional) R2 MFC ISDN, SS7 connection redundancy Fax T.38, pass-through
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