The A400E04 is an OpenVox A400E bundled with 4 FXO modules.
You can also add FXO-100 or FXS-100 modules to use with this product according to your requirements.
OpenVox A400E04 is designed to be fully compatible with the TDM400P Asterisk Analog Telephony card.
The card supports up to a total of 4 FXO and/or FXS connections with FXO-100 and/or FXS-100 modules.
The FXO-100 (FXO) module allows the A400E card to terminate analog telephone lines (POTS). The FXS-100 (FXS) module allows the A400E card to terminate analog telephones.
Key Features and benefits: