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The Sangoma A503DE BRI card features a PCI Express platform with built-in echo cancellation for voice. This PCI Express card includes three BRI modules, and each module hosts two BRI ports. These six BRI ports can be quickly switched between TE and NT modes.
Sangoma's modular A500 series is a line of BRI network cards with PCI Express interfaces. The Remora daughterboards on these cards offer slots for up to three BRI modules, of which the A503DE carries one Remora and three modules. The Sangoma A503DE is scalable to four Remoras hosting a total of 12 modules, or 24 BRI ports.
