The AX110X single port FXO module allows the AX400P card or IP0X series IP PBX to terminate analog telephone lines (POTS).
A user can activate additional ports at any time with more AX110X modules. The AX110X module passes all the call features, any standard analog telephone line will support. It is Pin to Pin compatible with Digium's X100M daughter card. User can use this module directly on TDM400P card.