Cisco 2 Port foreign exchange office (FXO) card.

The two-port FXO voice/fax interface card for Cisco voice/fax network modules is used to connect to PBX or key system, and to provide off-premise connections. This voice interface card works with existing phone and fax equipment to provide voice and fax services over IP, and is compatible with H.323 standard for audio- and videoconferencing

Compatible with Cisco 1751, 1760, 2600, 3600, 2600XM, 2691, 3725, 3745 Series Routers

Condition: Pre-owned in good condition

This card has proven to be extremely reliable, it was removed from our router so we could upgrade to a 4 port FXO.