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Digium TE236 Two Span Digital T1/E1/J1/PRI PCI 3.3V/5.0V Card and Hardware Echo Cancellation VPM064 (1TE236BF)
Digium TE236 Two span digital T1/E1/J1/PRI PCI 3.3V/5.0V card and hardware echo cancellation VPM064 (1TE236BF). Find out more at voip.com.vn