FA40 is a 4-port analog interface failover box. It can better protect the unpredictable problems happen to the Asterisk PBX. It will provide an effective way to backup the Asterisk PBX when undesirable changes are detected (often when Asterisk fails or power-off of the system). FA40 provides a reliable and flexible solution to Asterisk PBX. [Product Details...]

FB40 is a 4-port ISDN BRI interface failover box. It can better protect the unpredictable problems happen to the Asterisk PBX. It will provide an effective way to backup the Asterisk PBX when undesirable changes are detected (often when Asterisk fails or power-off of the system). FB40 provides a reliable and flexible solution to Asterisk PBX. [Product Details...]

FD40 is a 4-port PRI interface failover box. It can better protect the unpredictable problems happen to the Asterisk PBX. It will provide an effective way to backup the Asterisk PBX when undesirable changes are detected (often when Asterisk fails or power-off of the system). FD40 provides a reliable and flexible solution to Asterisk PBX. [Product Details...]