The Digium TE407P card with Hardware Echo Cancellation, incorporates an on-board DSP-based echo cancelation module, supports E1, T1, and J1 environments and is selectable on a per-card/per-port basis.

The TE407P merges the leading TE405P card and VPM450M Octasic DSP-based echo cancellation module. The VPM450M provides a certified carrier-grade algorithm that has been labeled an industry benchmark for echo cancelation.

This new module improves upon the older VPM400M and TE411P/TE406P products. Previously, with the VPM400M, 16ms or 128taps of echo cancellation were possible across 128 channels. With the new VPM450M, users can eliminate echo tails up to 128ms or 1024 taps across all 128 channels in E1 mode or 96 channels in T1/J1 modes. In addition, this module utilises the Octasic Voice Quality Enhancement to provide superior sound quality on all calls.

The Digium TE407P has been designed for full compatibility with existing software applications and is fully integrated with the open source Asterisk PBX/IVR platform. Furthermore, the open source driver supports an API interface for custom application development.

The TE407P supports industry standard telephony and data protocols, including Primary Rate ISDN (both N. American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes. Both line-side and trunk-side interfaces are supported, also included are advanced call features. The TE407P is for use only with a 5.0 volt PCI slot.