The A4 Series of analog cards supports up to four (4) connections per card in your Asterisk system. Using Digium’s single-port interface modules, A4 series cards can scale from one (1) to four (4) ports.
The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving you the exact port configuration you need. Digium A4 Series analog cards are available in low profile, half-length PCI and PCI Express form factors.
Digium cards are compatible with all versions of Asterisk using the DAHDI driver framework. Asterisk and DAHDI are available for free from the Asterisk.org website. All cards include a five (5) year warranty and are eligible for Digium’s Exceptional Satisfaction Program (ESP) risk-free Quality GuaranteeApplications:
Connect Asterisk-based systems to analog phone lines
Connect analog PBX systems to VoIP services
Channel Bank Replacement / Alternative
Gateway Termination to analog telephones/lines
Suitable for Small Office/Home Office (SOHO) and Small and Medium Business (SMB) applicationsSpecifications:
One (1) – four (4) analog ports
PCI or PCI Express bus architectures
Combine line (FXO) and station (FXS) modules
Accepts up to four (4) single-port modules
Optional DSP -based carrier grade echo cancellation module
32-bit 33MHz
Loop Start or Kewl Start Signaling
Temperature: 0° to 50° C
Digium patented VoiceBus™ technology for better audio
30-day 100% satisfaction money back guarantee
5-year warranty
With Asterisk – DAHDI 2.8 or later required
With Switchvox – Switchvox 5.8.1 or later required (Coming soon)

The A4 Series of analog cards supports up to four (4) connections per card in your Asterisk system. Using Digium’s single-port interface modules, A4 series cards can scale from one (1) to four (4) ports.
The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving you the exact port configuration you need. Digium A4 Series analog cards are available in low profile, half-length PCI and PCI Express form factors.
Digium cards are compatible with all versions of Asterisk using the DAHDI driver framework. Asterisk and DAHDI are available for free from the Asterisk.org website. All cards include a five (5) year warranty and are eligible for Digium’s Exceptional Satisfaction Program (ESP) risk-free Quality GuaranteeApplications:
Connect Asterisk-based systems to analog phone lines
Connect analog PBX systems to VoIP services
Channel Bank Replacement / Alternative
Gateway Termination to analog telephones/lines
Suitable for Small Office/Home Office (SOHO) and Small and Medium Business (SMB) applicationsSpecifications:
One (1) – four (4) analog ports
PCI or PCI Express bus architectures
Combine line (FXO) and station (FXS) modules
Accepts up to four (4) single-port modules
Optional DSP -based carrier grade echo cancellation module
32-bit 33MHz
Loop Start or Kewl Start Signaling
Temperature: 0° to 50° C
Digium patented VoiceBus™ technology for better audio
30-day 100% satisfaction money back guarantee
5-year warranty
With Asterisk – DAHDI 2.8 or later required
With Switchvox – Switchvox 5.8.1 or later required (Coming soon)

The A8 Series of analog cards supports up to eight (8) connections per card in your Asterisk system. Using Digium’s advanced quad-port interface modules, A8 Series cards can scale from one (1) to eight (8) ports.
The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving you exactly the ports you need. The A8 Series cards are available in half-length PCI and PCI Express form factors.
Digium cards are compatible with all versions of Asterisk using the DAHDI driver framework. Asterisk and DAHDI are available for free from the Asterisk.org website. All cards include a five (5) year warranty and are eligible for Digium’s Exceptional Satisfaction Program (ESP) risk-free Quality GuaranteeApplications:
Connect Asterisk-based systems to analog phone lines
Connect analog PBX systems to VoIP services
Channel Bank Replacement / Alternative
Gateway Termination to analog telephones/lines
Suitable for Small Office/Home Office (SOHO) and Small and Medium Business (SMB) applications

Specifications:
One (1) – eight (8) analog ports
PCI or PCI Express bus architectures
Combine line (FXO) and station (FXS) modules
Accepts up to four (4) single-port modules
Optional DSP -based carrier grade echo cancellation module
32-bit 33MHz
Loop Start or Kewl Start Signaling
Temperature: 0° to 50° C
Digium patented VoiceBus™ technology for better audio
30-day 100% satisfaction money back guarantee
5-year warranty
With Asterisk – DAHDI 2.8 or later required
With Switchvox – Switchvox 5.8.1 or later required (Coming soon)

The A8 Series of analog cards supports up to eight (8) connections per card in your Asterisk system. Using Digium’s advanced quad-port interface modules, A8 Series cards can scale from one (1) to eight (8) ports.
The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving you exactly the ports you need. The A8 Series cards are available in half-length PCI and PCI Express form factors.
Digium cards are compatible with all versions of Asterisk using the DAHDI driver framework. Asterisk and DAHDI are available for free from the Asterisk.org website. All cards include a five (5) year warranty and are eligible for Digium’s Exceptional Satisfaction Program (ESP) risk-free Quality GuaranteeApplications:
Connect Asterisk-based systems to analog phone lines
Connect analog PBX systems to VoIP services
Channel Bank Replacement / Alternative
Gateway Termination to analog telephones/lines
Suitable for Small Office/Home Office (SOHO) and Small and Medium Business (SMB) applications

Specifications:
One (1) – eight (8) analog ports
PCI or PCI Express bus architectures
Combine line (FXO) and station (FXS) modules
Accepts up to four (4) single-port modules
Optional DSP -based carrier grade echo cancellation module
32-bit 33MHz
Loop Start or Kewl Start Signaling
Temperature: 0° to 50° C
Digium patented VoiceBus™ technology for better audio
30-day 100% satisfaction money back guarantee
5-year warranty
With Asterisk – DAHDI 2.8 or later required
With Switchvox – Switchvox 5.8.1 or later required (Coming soon)

Using Digium’s Asterisk software and standard PC hardware, one can create a telephony environment that includes all of the sophisticated features of a high-end business telephone system.Using an industry-standard bursting, bus-mastering interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus™ technology, the AEX2400 eliminates the requirement for separate channel bank and T1 interface cards, with industry-leading performance and price. The quad trunk and quad station modules are interchangeable, allowing the creation of any combination of interfaces. The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior voice quality on both trunk and station interfaces. Scaling of this solution is accomplished by adding additional AEX2400 interface cards.

Using Digium’s Asterisk software and standard PC hardware, one can create a telephony environment that includes all of the sophisticated features of a high-end business telephone system.Using an industry-standard bursting, bus-mastering interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus™ technology, the AEX2400 eliminates the requirement for separate channel bank and T1 interface cards, with industry-leading performance and price. The quad trunk and quad station modules are interchangeable, allowing the creation of any combination of interfaces. The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior voice quality on both trunk and station interfaces. Scaling of this solution is accomplished by adding additional AEX2400 interface cards.

Using Digium’s Asterisk software and standard PC hardware, one can create a telephony environment that includes all of the sophisticated features of a high-end business telephone system.Using an industry-standard bursting, bus-mastering interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus™ technology, the AEX2400 eliminates the requirement for separate channel bank and T1 interface cards, with industry-leading performance and price. The quad trunk and quad station modules are interchangeable, allowing the creation of any combination of interfaces. The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior voice quality on both trunk and station interfaces. Scaling of this solution is accomplished by adding additional AEX2400 interface cards.

Using Digium’s Asterisk software and standard PC hardware, one can create a telephony environment that includes all of the sophisticated features of a high-end business telephone system.Using an industry-standard bursting, bus-mastering interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus™ technology, the AEX2400 eliminates the requirement for separate channel bank and T1 interface cards, with industry-leading performance and price. The quad trunk and quad station modules are interchangeable, allowing the creation of any combination of interfaces. The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior voice quality on both trunk and station interfaces. Scaling of this solution is accomplished by adding additional AEX2400 interface cards.

Using Digium’s Asterisk® software and standard PC hardware, one can create a telephony environment that includes all of the sophisticated features of a high-end business telephone system.

Using an industry-standard bursting, bus-mastering interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus Technology, the AEX410 eliminates the requirement for external gateways, with industry-leading performance and price. The trunk and station modules are interchangeable, allowing the creation of any combination of interfaces. The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior voice quality on both trunk and station interfaces. Scaling of this solution is accomplished by adding additional AEX410 or other Digium analog interface cards.

Using Digium’s Asterisk® software and standard PC hardware, one can create a telephony environment that includes all of the sophisticated features of a high-end business telephone system.

Using an industry-standard bursting, bus-mastering interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus Technology, the AEX410 eliminates the requirement for external gateways, with industry-leading performance and price. The trunk and station modules are interchangeable, allowing the creation of any combination of interfaces. The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior voice quality on both trunk and station interfaces. Scaling of this solution is accomplished by adding additional AEX410 or other Digium analog interface cards.