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Green printed circuit board with eight modular ports and a gold PCI edge connector

Roby Technology Co., Limited

Roby Technology Co., Limited TDM800P 8 FXS Port PCI Card telephone accessory

SKU CH-VSP3-T8B3E

Eight FXS ports on a PCI card connect analog phones to Asterisk-based PBX software

  • Product typePhone Accessories
  • DetailsAnalog FXS Card
  • Key featuresSupports Asterisk , Issabel, FreePbx ,Dahdi ...
  • Connect up to 8 analog phones via 8 FXS ports
  • Install directly into a PCI slot for system integration
  • Build a PBX with Asterisk, FreePBX, Issabel or Dahdi support
  • Red FXO and green FXS modules simplify port identification
  • Low-cost VoIP gateway using open-source software and a PC

Eight-port FXS card for Asterisk systems

The TDM800P provides eight FXS ports on a standard PCI interface. It is designed for integrators building a VoIP PBX or call-centre gateway with Asterisk, DAHDI, FreePBX, Issabel or FreeSWITCH. Each port connects a traditional analogue telephone handset to the IP network.

PCI installation and module identification

The card fits any available PCI slot and is recognised by DAHDI 2.2.0 using the supplied configuration commands. A common issue is confusing the red FXO modules with the green FXS modules; only the green ports accept analogue handsets, while the red ports are for PSTN trunks.

Sustained operation with MG2 echo cancellation

Under continuous call load the on-board MG2 echo canceller handles each active channel without host CPU overhead. The DAHDI driver maintains stable channel mapping across long-running sessions, so voice quality remains consistent during extended business hours.

How it compares

Measured against everything we stock in Headsets, Cords & Phone Mounts, at today’s prices. Recalculated every night.

Price $122.99
Pricier than about 85% of the 796 comparable items (median $17.99).

Specifications

Product
Brand nameAsteriskStore
Model nameTdm800p
Product typePhone Accessories

Questions about this item

How do I confirm the TDM800P card is working after installing it in a PCI slot and running dahdi_genconf?

Run dahdi_cfg -vvvv and check that eight channels appear with FXS Kewlstart signalling and MG2 echo canceller on each channel.

What comes in the box with the TDM800P 8 FXS Port PCI Card and what must I source separately?

The card with eight green FXS modules is included; analogue telephones, a compatible PCI motherboard slot and a Linux PC running Asterisk, DAHDI, FreePBX or Issabel are not included.

Which version of the TDM800P should I choose if I need to connect eight analogue phones to an Asterisk-based PBX?

Select the 8 FXS port model; it provides eight FXS ports for telephone sets and uses a PCI interface for the host PC.

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