Astribank is a USB channel bank especially designed for Asterisk Open Source PBX systems
Astribank connects to the Asterisk IP-PBX server via USB 2.0, thus eliminating the need for an intermediating PCI (the solution used by other channel banks).
Modular, Flexible Channel Bank Grows with Your Telephony Needs
A single Astribank USB-connected channel bank supports various combinations of analog and/or digital telephony lines and trunks. See the Astribank models table for suggested configurations. Furthermore, the Astribank design allows customers to let the system grow along with their telephony needs. The digital modules support individual software activation of each port (up to four ports per PRI module, and up to eight ports per BRI module). In other words, customers purchasing a single E1/T1 port receive hardware that can support up to four active ports. When required, the additional port(s) can be activated remotely, via a software key. Additional analog modules can also be added as needed (each chassis supports up to four modules of eight analog ports each) for a maximum of 32 analog ports per chassis.
Astribank's driver has been included as an official part of Zaptel (now DAHDI) since release 1.2.4 (Feb. 2006), making Astribank integral with Asterisk systems. Today Astribank is tested with Debian and CentOS 5.