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XORCOM Astribank Asterisk Gateway

XORCOM Astribank Asterisk Gateway-XR0000
Κατασκευαστής: XORCOM
Κωδικός Προϊόντος: Astribank

Astribank is a versatile USB Asterisk Gateway specifically designed for the Asterisk IP-PBX. Astribank supports all the common telephony interfaces for lines (trunks) and extensions: FXS, FXO, BRI, E1/T1 PRI, T1 CAS and E1 R2. The Astribank driver is a part of the standard Asterisk distribution.

Astribank is LAN-independent Asterisk Gateway and supports TwinStar high availability.  Using Xorcom’s unique XPP technology, a single Astribank unit may provide as much as 32 analog ports, 16 PRI ports, and mixed analog and digital ports in the same unit, saving rack space and providing highly efficient and reliable way to create a hybrid VoIP PBX that supports traditional lines and/or extensions.

Using Astribank to connect analog phones and PSTN lines

IP PBX USB Gateway - Astribank

Comparison – VoIP Gateways, Astribanks, and other interfaces

Astribank brings significant advantages in density, management, high-availability and other important features. 

Feature Astribank PCI Card Channel Bank Comments
RJ11 and Telco Connections image001 image001 image001 Astribank supports both connection types (optional) simultaneously
Clear Front Panel Status Indication image001 image001 image001 Astribank provides real time port status information via front-panned LEDs
Redundant Power Supply image001 image001 image001 Astribank telephony interface for Asterisk PBX systems has optional redundant power supply to ensure full reliability
Rack Space for 1,000 analog ports "32 U (4.72 feet)" N/A "84 U* (12.4 feet)" *Typical figures for gateways and channel banks
Output Ports image001 image001 image001 Used to activate auxiliary devices such as electric locks and gates by dialing in the PBX
Input Ports image001 image001 image001 Used to connect auxiliary systems, such as alarm systems to the Asterisk PBX.
Automatic Configuration image001 image001 image001 Astribank is automatically detected and configured in the Asterisk PBX.
Non-Intrusive Installation image001 image001 image001 Astribank does not require PBX shutdown and opening of panels.
High Density E1/T1 image001 image001 image001 Astribank supports up to 16 E1/T1 ports in one device. More than one Astribank may be used in the same system.
Supports Mixed Analog/Digital in a Single Device image001 image001 image001  
Supports All Telephony Standards image001 image001 image001  
High Availability image001 image001 image001 Astribank may connect directly to two Xorcom IP PBX systems and perform hands-free failover for all ports.
Hot Pluggable image001 image001 image001  
Direct Connection to Asterisk Server image001 image001 image001 Not dependent on LAN, Channel bank may require an additional PCI card and available slot.
Reliable Fax Support image001 image001 image001  
Centrally Managed via the Asterisk PBX image001 image001 image001  
Specifically Designed for Asterisk image001 image001 image001  

Benefits of the USB interface

  • The USB 2.0 interface supplied with the Astribank server guarantees a reliable, extremely high bandwidth, a hot-pluggable solution that is not dependent on LAN or a PRI PCI card.
  • A single USB 2.0 port can theoretically support over 3,000 concurrent calls.
  • The reliable, USB connection and Xorcom’s unique XPP protocol ensures capabilities such as reliable fax support, transparent synchronization between Astribank units, an auxiliary system interface, and more.

Astribank USB Gateway Specifically designed for Asterisk Open Source PBX systems


Astribank was designed for Asterisk systems from the get-go.  For this reason, Astribank USB gateway is natively supported in Asterisk IP PBX systems. Xorcom’s Astribank drivers are an integral part of Asterisk since 2006. Unlike VoIP gateways, Astribank units are centrally managed via Asterisk allowing both the flexibility and scalability of a gateway while being a fully integrated part on the PBX like a telephony card. In Xorcom CompletePBX systems Astribank is managed via the system GUI in a native way (version 5.0 and up).


Scalable and Flexible

A single Astribank gateway supports various combinations of analog and/or digital telephony lines and trunks. See the Configurations tab in the table for suggested configurations. Furthermore, the Astribank design allows users to let the system grow along with their telephony needs. Astribank supports all the available Xorcom Telephony Interface Modules. The digital modules (PRI and BRI) support individual software activation of each port (up to four ports per PRI module, and up to eight ports per BRI module). Each Astribank unit may be populated with 1-4 Telephony Interface Modules, including a mix of different interface types in the same Astribank unit.

Using Astribank Asterisk Gateway to connect legacy PBX

VoIP USB Gateway - Astribank


Astribank’s driver has been included as an official part of Zaptel (now DAHDI) since release 1.2.4 (Feb. 2006), making Astribank Asterisk Gateway integral with Asterisk systems. Today Astribank is tested with Debian and CentOS. While not regularly tested, Astribank is compatible with any modern Linux-based distribution.


Echo Cancellation module Voice enhancement & echo cancellation (optional)
Analog Lines Fail-over In a case of power outage or an Asterisk malfunction, up to six analog PSTN lines are routed directly to predetermined analog extensions.
I/O Ports Input/Output ports for Asterisk peripheral device support (model-specific)
Rapid PA™ Public Address capability for FXS port(s) (optional and model-specific)


  • Maximum number of built-in analog ports: 32
  • Maximum number of E1 / T1 ports: 16
  • Maximum number of BRI ISDN ports: 8
  • Maximum number of telephony modules: 4
  • Maximum number of telephony ports: 54 (E1 PRI/R2/CAS + 24 analog ports)


Analog Modules Chart

Telephony Ports Optional Extras Part Number
FXS FXO I/O Ports TCO Analog Fail-over  
24   XR0021
32   XR0022
16   XR0020
2 6   XR0012
8 24 + +   XR0011
8   XR0019
16 + +   XR0003
8 + +   XR0001
16 16 + +   XR0010
32 + +   XR0008
6 2 +   XR0030
16 8 + + + XR0006
24 + +   XR0005
8 16 + + + XR0007
24 8 + +   XR0009
8 8 + + + XR0004

BRI ISDN Modules Chart

Telephony Ports Optional Extras Part Number
BRI FXO FXS TCO Analog Fail-over  
2 16 8 +   XR0091
8 16 8 +   XR0103
4   XR0014
4 24 +   XR0032
8 16   XR0100
8 8   XR0099
2 24   XR0089
2   XR0013
2 24 +   XR0066
8 8 8 + + XR0102
2 8 +   XR0033
4 16 8 +   XR0097
4 8 16 +   XR0098
4 8 8 + + XR0096
2 8 8 + + XR0090
2 8   XR0087
8 24   XR0101
4 24   XR0095
2 8 16 +   XR0092
8 8 16 +   XR0104
4 8   XR0093
2 16 +   XR0065
4 16   XR0094
8 16 +   XR0043
4 8 +   XR0029
4 16 +   XR0031
8 24 +   XR0044
8 8 +   XR0042
2 16   XR0088
8   XR0015

PRI / R2 / CAS Modules Chart

Telephony Ports Optional Extras Part Number
PRI / R2 / CAS FXO FXS TCO Analog Fail-over  
1 16 +   XR0070
1   XR0047
2 16 8 +   XR0079

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