Sangoma 24 Port FXS Card

Analog Voice Boards / Analog Telephony Interface boards

Sangoma 24 Port FXS is among the highest quality Analog Telephony Interface boards for connecting Asterisk ®, FreeSWITCH® and many proprietary phone systems to the PSTN. Sangoma 24 Port Analog Telephony Interface boards are also an outstanding choice for building proto-type and proof-of-concept systems. The same drivers and API’s that are used for building a system that supports two telephony calls are used for systems that can support thousands of calls.
The 24 Port FXS analog voice boards deliver superior audio quality in a 2U board that expands from two to eight ports using a single interface slot.

FXS Analog Card

24 – Port Analog Telephony Card

The 24-port FXS Analog Card supports up to 24 connections per card in the Asterisk system. The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving the exact port configuration required.
FXS is the ‘Foreign eXchange Subscriber’ interface (the plug on the wall) delivers analog telephony services to your home by local phone companies through a circuit consisting of two copper wires; connected to the subscriber equipment (telephones, modems, and fax machines).

Sangoma 4 Port FXO Card

Analog Voice Boards / Analog Telephony Interface boards

The Sangoma 4 port FXO analog voice board is designed specifically for smaller-budget installations. • 4 Simultaneous PSTN calls (per interface slot) • Compatible with all commercially available motherboards • Hardware echo cancellation available • Hardware fax synching support

FXO is foreign eXchange Office interface, and is the plug on the phone that receives Analog telephony services, typically from the local phone company’s central office, of the Public Switched Telephone Netwok (PSTN). In other words, an FXO interface points to the Telco office.
Primarily, the services provided by an FXO interface to any Telco network device are to on-hook / off-hook indication (loop closure).

Buy Single Port PRI Digital Card

As claimed by Sangoma it is “industry’s first affordable single span T1/E1/J1 board“ for smaller systems. Sangoma 1 port PRI digital card uses the same high-performance PCI or PCI Express interface that is providing superior performance in critical systems all over the world. It supports up to 2.048 Mbps of full duplex data throughput or up to 30 voice calls over a single T1, E1, or J1 line.

16 Port GSM Dialer

16 port GSM dialer is a call center suit with GSM trunk. With 16 GSM ports, user can make or receive 16 concurrent calls. The objective of the GSM dialer is to connect the GSM card to the computer.
GSM dialer is the perfect call center solution for remote locations, where connectivity is available only through GSM cards.

4 Port PRI Card from *astTECS

*astTECS offers *ast 4 PRI, the four port digital PRI card at the market competitive rate. The *ast 4 PRI card is capable to support up to 30 voice calls per span, full-duplex data throughput. The card can be used to create powerful PBX system with Asterisk – the open source platform.
To further improve the output, we need to add the 128ms Hardware based Echo Cancellation Module and reach the highest standard in voice quality on the market.

Digium 4 PORT Digital PRI Cards

Quad Span – Echo cancellation

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 factor. All quad span models be combined with Digium's VPMOCT128 echo cancellation module to provide echo cancellation across all channels. Digium cards are compatible with all versions of Asterisk using the DAHDi driver framework.

Digium Digital Telephony Cards

Single Span – Echo Cancellation

Digium’s single span digital cards are the latest additions to the Telephony Card family. The latest design utilizes state of the art technologies to support T1/E1/PRI environments that require a high-performance, cost effective digital telephony interface card. They have the ability to create a seamless network, interconnecting traditional telephony systems with Voice over IP technologies.
These 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. Octasic based hardware echo cancellation is built in to the cards, which removes the task of echo cancellation from the systems CPU and increases overall system performance and call quality.