This base PCI card for Digium's A4-series is scalable through expansion modules. Connect up to four interchangeable FXO or FXS modules. This base card also includes a carrier-grade echo cancellation unit for higher audio quality.
The Digium A4-series base card is designed to connect analog and VoIP components for a unified PBX. Slide this card into an open PCI slot.
Digium 1A4A01F Base FXS / FXO PCI Card Quick Specs:
- Base Card: A4A
- Number of FXO Ports: 0
- Number of FXS Ports: 0
- Maximum Ports: 4
- Echo Cancellation: Yes
- Slot Type: PCI
Digium A4-Series Telephony Card Package Contents:
- Digium 1A4A01F base PCI card
- Echo cancellation unit