Digium A4B Voice Board

Digium Analog Cards and ModulesDigium analog cards were created for connecting analog telephones and analog POTS lines through a PC. Using one of our analog cards in concert with Digium's Asterisk software, standard PC platforms, and Linux®, one can create telephony environments capable of satisfying the needs of business applications with industry-leading quality.Digium analog cards were created for connecting analog telephones and analog POTS lines through a PC. Using one of our analog cards in concert with Digium's Asterisk software, standard PC platforms, and Linux®, one can create telephony environments capable of satisfying the needs of business applications with industry-leading quality.