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Eicon Diva ISDN Terminal Adapter - POTS Option Analog Breakout Box with Cable 741016945502 | eBay
ISDN BRI Splitter 6 ports, incl. Cable 3m (Terminating resistors: 2x1
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OpenVox FD140 4 Port T1/E1 PRI or BRI-ISDN Interface Failover Box, 1U
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