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- BRI TE and NT simulation, monitoring
- PRI TE and NT simulation, monitoring
- Dual U interface for troubleshooting between the NT and the Exchange
- B-channel voice and D-channel signaling monitor
- EDSS1, V5.1/V5.2, QSIG, SS7 protocols
- Automatic test of the supplementary services: CLIP, CLIR, COLP, COLR, CFU, CFB, CFNR, AOC, DDI, SUB, UUS
- Physical Layer testing
- Power feeding measurements with external adapters
- BERT bit error test with evaluation in accordance to G.821 / G.826
- Large store-recall memory for test results
- Selectable English or Russian languages
- Test results transfer to PC via USB interface
- 320 x 240 dot LCD display
- LED indicators showing status of line signal
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