Cisco High Density VoiceFax Network Module - Tale / fax modul - Utvidelsesspor - FXO - analogporter: 6 - for Cisco 28XX, 28XX V3PN, 29XX, 38XX, 38XX V3PN, 39XX

This 6-port FXO voice and fax expansion module provides off-premises connection to the central office. This module supports FXO power failover. If power to the router fails, this feature helps enable a direct metallic path between an FXO port and a special "red" telephone to provide a direct line to the PSTN.