Digium has released the AEX410, a modular four-port analog PCI-Express x1 telephony interface card for Asterisk. The AEX410 is the PCI-Express version of Digium’s existing TDM410 product.

The AEX410 provides analog (FXS) ports and trunk (FXO) ports for POTS/PSTN connectivity. It may be connected to the PSTN, to other PBXs, or to analog handset devices with those modules. Optional DSP-based 128ms line echo cancellation for the AEX410 is provided by Digium’s VPMADT032 G.168 module. The optional hardware echo cancellation provides 1024 taps of echo cancellation for superior voice quality.

The naming convention for the AEX410 part numbers is as follows:

AEX4XYZ

Where X indicates the number of FXS (station) modules (ports)
Where Y indicates the number of FXO (trunk) modules (ports)
Where Z indicates either B for bundles not containing DSP-based echo cancellation or E for bundles that do contain DSP-based echo cancellation.

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