Single span of optimized voice and data over T1, E1, and J1 available with Telco-grade hardware echo cancellation.

Category: PSTN/ISDN CARDS & GATEWAYS, Servers and Appliances

The A101 is part of Sangoma’s family of Advanced Flexible Telecommunications hardware product line—it uses the same high-performance PCI or PCI Express interface that is providing superior performance in critical stems all over the world.


The A101 supports up to 30 voice calls or 2.048 Mbps of full duplex data throughput over a single T1, E1, or J1 line.


Take advantage of hardware and software improvements, as soon as they become available. Like all boards in Sangoma’s AFT family, the A101 is field upgradable with crash-proof firmware.


Choose the Sangoma A101D and A101DE, equiped with world class DSP hardware to achieve carrier-grade echo cancellation and voice quality enhancement functions for your telephone systems.


Technical Specifications

One T1/E1 span with optimum PCI or PCI-Express interface for high performance voice and data application

Support for Asterisk FreeSWITCH and Yate as well as other Open Source and proprietary PBX, Switch, IVR, and VoIP gateway applications

All of Sangoma’s AFT products use the same base PCI interface board. Fully compatible with all commercially available motherboards—proper PCI-standard interrupt sharing without manual tuning

Dimensions: 2U Form factor: 120 mm x 55 mm for use in restricted chassis; includes high-quality, tested RJ45 cables and short 2U mounting clips for installation in 2U rack-mount servers

Intelligent hardware: Downloadable FPGA programming with multiple operating modes. Add new features related to voice and/or data when they become available

Autosense compatibility with 5 V and 3.3 V PCI busses

Line decoding: HDB3, AMI, B8ZS

Framing: CRC-4, Non CRC4, ESF, SF, D4. Also compatible with Japan’s J1

A101E and A101DE PCI Express: 1 Lane PCI Express bus

Maximum operational power for PCI: 3 W (0.6 A @ 5 V) For PCI Express: 2.5 W (0.76 A @ 3.3 V)

Temperature range: 0 – 50 °C

32-bit bus master DMA data exchanges across PCI interface at 132 Mbytes/sec for minimum host processor intervention

Ring buffer DMA handling for minimum host intervention and guaranteed data integrity on high volume systems

Supports Robbed Bit Channel Associated Signaling (CAS) and ISDN PRI

T1/E1 and fractional T1/E1, multiple channel HDLC per line for mixed data/TDM voice applications

Optimized per channel DMA streams and hardware-level HDLC handling unload the host CPU

Uses raw bitstream interfaces to support arbitrary non-standard line protocols, such as non-byte aligned monosynch or bisynch

WANPIPE routing stack is completely independent of TDM voice application for total system reliability

WANPIPE supports certified, field-tested, and reliable Frame Relay, PPP, HDLC, and X.25

Impedance: Configurable to 75ohms or 120ohms

RJ45 T1/E1 Pinouts







Optional DSP Hardware Echo Canceler Daughterboard

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

Operating Systems

Windows 2003, Windows XP, Windows Server 2008, Windows Vista, Windows 7

Linux (all versions, releases and distributions from 1.0 up)

T1/E1 Status Alarms

RED: Telco Red Alarm Condition

OOF: Out of Frame

LOS: Receive Loss of Signal

AIS: Alarm Indication Signal

RAI: Remote Alarm Indication (Yellow Alarm)

Line Protocols

Voice CAS, MFC/R2, PRI, ATM, Frame Relay, X.25, HDLC, PPP, SS7, Transparent bit-stream, BSC

Higher Level Protocols

IP/IPX over Frame Relay/PPP/HDLC/X.25, X.25 over Frame Relay (Annex G), BSC over X.25, SNA over X.25, PPPoE,PPPoA, IP over ATM


FCC Part 15 Class A, FCC Part 68, CISPR 22, EN 55022, Class A, CIPSR 24, AFIC-2016, IEC 60950, JATE

Technical certifications in Russia, Malaysia, and Australia

Diagnostic Tools

WANPIPEMON, SNMP, system logs


Lifetime warranty on parts and labour. Plus a 30-day no questions asked return policy.

Production Quality

ISO 9002

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