Digium telephony cards are high-performance, highly reliable and cost-effective interfaces for POTS lines to your Asterisk solution. Multiple applications can be created to satisfy the business needs of any organization when using Digium cards in concert with Asterisk software, the Linux® operating system and standard PC/server platforms.
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.
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.
The 2400 Series cards support up to 24 analog connections per card in your Asterisk system. Using Digium's advanced quad-port interface modules, 2400 series cards can scale from four (4) to 24 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. Digium 2400 Series cards are available in full-length PCI 2.2 and PCI Express form factors.
Digium's super-reliable digital line cards connect Asterisk-based communication systems to T1, E1, J1 and ISDN-BRI interfaces.
Add up to 24 (T1) or 30 (E1) crystal clear digital calls to your Asterisk system with a Digium single span digital telephony card. Available in PCI or PCI Express form factor, the single span cards use state of the art technology for unsurpassed call quality and system compatibility.
With a dual-span Digium digital telephony card you can add up to 48 (T1) or 60 (E1) calls to your Asterisk communications system. With a five year warranty, an optional echo cancellation module and support from the Asterisk experts, Digium cards are the gold standard for PSTN connectivity.
Building a large-scale communications system with Asterisk? A Digium quad span card lets you up to four T1 or E1 circuits. That's a total of 96 (T1) or 120 (E1) concurrent calls. All quad span cards come with Digium's Exceptional Satisfaction Program (ESP) risk-free guarantee, a five year warranty and support for the optional VPMOCT064 echo canceller.
Get more out of Asterisk by offloading codec conversions to Digium's TC voice compression cards. Software transcoding takes up host CPU cycles and can limit the capacity of your server. TC cards are dedicated hardware transcoders; they drastically reducing the bandwidth consumed by each call without ever touching your host CPU. Our voice compression cards are capable of compressing/decompressing 120 channels of G.729 or 92 channels of G.723.1.
Digium External PSU
Digium 1ACC24PBO RJ-11 Breakout Box
Digium 1CBRJ21H6 RJ21 Cable