Adds capacity for an additional 6 FXO/FXS modules (maximum 12 ports).
Modules are NOT included.
Appropriate Backplane must be ordered separately.
Solution requires: 1 x Sangoma A400-series card (A400, A400D, A400E or A400DE) 1-3 x Sangoma Remora A400 Expansion Card(s) 1 x Sangoma Backplane (pick model suitable for number of cards/expansion cards).
