Name: VC420D 1-4 E1/T1/J1 Ports
VC420D Asterisk card is the telephony PCI card which supports four ISDN PRI E1/T1/J1 ports, optional with teleco-grade hardware echo cancellation. Using VC420D digital PRI card, open source Asterisk PBX and stand alone PC, users can create their IP PBX telephony solution which include all the sophisticated features of traditional PBX, and extend features such as voicemail in IP PBX.
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