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Astribank: USB gateway for Asterisk IP PBX

Astribank is a versatile USB-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 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 linesAstribank Asterisk PBX

Comparison – VoIP Gateways, Astribanks, and other interfaces

Astribank brings significant advantages in density, management, high-availability and other important features. Click here to see full comparison.

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

pbx-securityAstribank 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 to connect legacy PBX

Astribank Legacy PBX

Software

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. While not regularly tested, Astribank is compatible with any modern Linux-based distribution.

Hardware

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

Telephony

  • 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 PortsOptional ExtrasPart Number
FXSFXOI/O PortsTCOAnalog Fail-over
24XR0021
32XR0022
16XR0020
26XR0012
824++XR0011
8XR0019
16++XR0003
8++XR0001
1616++XR0010
32++XR0008
62+XR0030
168+++XR0006
24++XR0005
816+++XR0007
248++XR0009
88+++XR0004

BRI ISDN Modules Chart

Telephony PortsOptional ExtrasPart Number
BRIFXOFXSTCOAnalog Fail-over 
2168+XR0091
8168+XR0103
4XR0014
424+XR0032
816XR0100
88XR0099
224XR0089
2XR0013
224+XR0066
888++XR0102
28+XR0033
4168+XR0097
4816+XR0098
488++XR0096
288++XR0090
28XR0087
824XR0101
424XR0095
2816+XR0092
8816+XR0104
48XR0093
216+XR0065
416XR0094
816+XR0043
48+XR0029
416+XR0031
824+XR0044
88+XR0042
216XR0088
8XR0015

PRI / R2 / CAS Modules Chart

Telephony PortsOptional ExtrasPart Number
PRI / R2 / CASFXOFXSTCOAnalog Fail-over 
116+XR0070
1XR0047
2168+XR0079
116+XR0049
1168+XR0073
10*XR0112
416+XR0061
124+XR0050
288++XR0078
14*XR0114
6*XR0110
28+XR0057
424+XR0062
124XR0071
48XR0081
1816+XR0074
216+XR0058
224+XR0059
2816+XR0080
2XR0055
18+XR0048
48+XR0060
416+XR0082
4816+XR0086
188++XR0072
8*XR0111
424XR0083
16*XR0115
4168+XR0085
28XR0075
4XR0056
488++XR0084
224XR0077
216+XR0076
18XR0069
12*XR0113

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