Analog Telephony Cards

A4 Series Analog Cards

The Sangoma A4 series analog telephony card supports from one (1) to four (4) ports for Asterisk, FreePBX and PBXact phone systems. Make up to 4 PSTN calls all on a single PCI or PCI Express slot.  The modular nature of the cards allows you to mix and match between FXO and FXS interfaces, giving you the exact port configuration you need.

The A4 series telephony card provides from 1-4 analog ports using single channel interface modules

With hardware echo cancellation options, compatibility with most commercial grade servers and Linux operating systems and with a lifetime warranty, customers trust in Sangoma to deliver value based telephony solutions.

Which type of module do I use?

  • FXS Ports are used to connect analog telephones and fax machines. They are also used to connect to the FXO ports of an analog phone system. They provide ring voltage to FXO devices.

FXS modules for A4 cards
Each module supports one (1) FXS channel, and one (1) analog device such as an analog phone or tradition fax machine.

  • FXO ports are used to connect directly to PSTN telco / provider lines. They are used to connect your analog phone system to the PSTN. They receive ring voltage from FXS devices.

FXO modules for A4 card
Each module supports up to one (1) FXO channel, and one (1) PSTN trunk lines.​

Analog Card Applications

PSTN Trunking

Use inside a server of your choice, powered by Linux/Windows, to create a SIP-TDM Gateway to allow IP-PBX to route calls to traditional PSTN.

SIP Trunking

Use inside a server of your choice, powered by Linux/Windows, to create a SIP-TDM Gateway with your  legacy analog based PBXs to replace expensive analog line connections with SIP trunking to allow reduced call costs, reduced line rental, and bring extra flexibility and disaster recovery.

Fax and Legacy Gateway

Use our Sangoma cards in your choice of hardware to connect legacy analog equipment like fax machines, door-bells or analog phones to your IP-based network.

Call Recording

Monitor and record telephone conversations for lawful call interception. Use your choice of software, including Sangoma’s own TDM SDK dedicated for call tapping.

Analog Card Features

Scalable

Configurable from 1 to 4 ports of FXO/FXS and mixed.

Highly Compatible

Plug and Play with FreePBX and PBXact phone systems and also compatible within most commercial grade servers and motherboards

Hardware Echo Cancellation

Optional 128ms Octasic DSP hardware echo cancellation for crystal clear audio.

Field upgradable firmware

Upgrade firmware remotely

Warranty

5 year warranty

Analog Card Specifications

Analog Card Specifications

  • Interfaces: 1-4 ports of FXO/FXS (Scalable).

Telephony Interface

  • 4 x 4-pin RJ11/4 narrow jack
  • All ports can be FXS or FXO using single-channel modules
  • Cables included: 4x 2m cables terminating in a narrow RJ11/4 plug at one end and a telephone-standard RJ11/6 plug at the other

PCI Interfaces

  • PCI or PCI Express
  • Fully PCI 2.2 compliant, compatible with all commercially available motherboards, and shares PCI interrupts
  • Autosense compatibility with 5 V and 3.3 V PCI busses and X1 PCI Express 32 bit 33Mhz

DSP Echo Canceller

  • IMAGE NEEDED
  • G.168-2002 echo cancellation in the 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
  • No CPU load as a result of echo cancellation
  • Does not increase the physical size of the card, and no additional slot is required

Dimensions

  • 2U form factor
  • 160mm x 63mm for use in restricted chassis

Power Supply

  • PCI or PCI Express

Models

  • 1A4B00F - 4 port modular analog PCI-Express x1 card
  • 1A4B01F - 4 port modular analog PCI-Express x1 card, no interfaces and HW Echo Can
  • 1A4A01F - 4 port modular analog PCI 3.3/5.0V card, no interfaces and HW Echo Can
  • 1A4A00F - 4 port modular analog PCI 3.3/5.0V card, no interfaces
  • 1X100MF- Single Channel Trunk (FXO) Module
  • 1S110MF- Single Channel Station (FXS) Module
Brackets
  • 3244-00052 - 4 port A4 analog boards low profile bracket

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