Digital PRI Cards

Digium’s new TE131, TE132, TE133 and TE134 single span digital cards are the latest additions to the Telephony Card family. The TE13x design utilizes state of the art technologies to support T1/E1/PRI environments that require a high-performance, cost effective digital telephony interface card. The TE13x family of cards have the ability to create a seamless network, interconnecting traditional telephony systems with Voice over IP technologies.

The TE13x family of cards support industry standard telephony protocols, including Primary Rate ISDN (both North American and Euro Standard) protocol families for voice. Both line-side and trunk-side interfaces are supported, as well as advanced call features. TE133 and TE134 model cards feature Octasic-based hardware echo cancellation that is built in to the cards, removing the task of echo cancellation from the systems CPU and increasing overall system performance and call quality. TE131 and TE132 model cards are for environments that do not require hardware-based echo cancellation, instead relying only on software echo cancellation.

Single span digital cards are perfect for building Asterisk solutions with direct connections to the phone network or legacy equipment. Common applications include:

• Direct PSTN connections for office phone systems
• Small call center ACDs with T1/E1 trunks
• Toll-bypass adjuncts for legacy TDM PBXs
• SIP trunk interface for legacy TDM systems

• Up to 24 (T1/J1) or 30 (E1) simultaneous calls
• Selectable T1, E1 or J1 Mode / Half-Length, Half-Height, Digital Card
• Protocol support includes: ISDN PRI, Robbed-Bit, CAS
• Models TE133 and TE134 feature built-in 128ms Octasic DSP hardware echo cancellation
• The TE131 and TE132 are not compatible with Switchvox. Use the TE133 or TE134 with non E-series model Switchvox appliances
• Not compatible with Switchvox E-Series appliances

Digium's quad span digital interface cards support 96 (T1 / J1) or 120 (E1) connections to PSTN trunks over four spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the quad span digital cards provide the best value in digital connectivity.

Quad span digital cards are available in PCI and PCI-Express form factors. All quad span models can be combined with an Octasic DSP-based echo cancellation module from Digium to provide effective hardware echo cancellation across all channels.

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 Guarantee.

• Connect four T1 or E1 trunks to an Asterisk-based PBX system
• Add direct digital PSTN connectivity to your Asterisk application or solution
• Ideal for call center applications, service bureaus and large phone systems

• Up to 24 (T1/J1) or 30 (E1) simultaneous calls per span (96 total T1/J1 and 120 total E1 per card)
• Supports T1, E1 and J1 physical interface connections
• Optional 128ms hardware echo cancellation module
• Asterisk and DAHDI supported (DAHDI 2.8 or later required for the TE435)
• Asterisk and DAHDI supported (DAHDI 2.10 or later required for the TE436)
• Not compatible with Switchvox E-Series appliances

• Four-Span T1/E1/J1 The Sangoma A104 card: Four spans of optimized voice and data over T1, E1, and J1 available with Telco-grade hardware echo cancellation.
• The Sangoma A104 card: Four spans of optimized voice and data over T1, E1, and J1 available with Telco-grade hardware echo cancellation.
• Support for Asterisk®, FreeSWITCH®, and Yate® as well as other Open Source and proprietary PBX, Switch,IVR, and VoIP gateway applications.
• Lifetime Warranty (with product registration).

• G.168–2002 echo cancellation in hardware 
• 1024 taps/128 ms tail per channel on all channel densities 
• DTMF decoding and tone recognition 
• Voice quality enhancement: music protection, acoustic echo control, and adaptive noise reduction 
• Does not increase the physical size of the board, and no additional slot is required.