Digium Asterisk HPEC License (8HPECLIC)

DigiumSKU: DIG8HPECLIC
Condition: New

Price:
Sale price$11.99

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Description

For Asterisk users that connect to the PSTN, the common type of echo is hybrid echo - the echo introduced by the impedance mismatch between 2-wire and 4-wire telephone circuits.

Key Features:

  • Mnfr. Part #: 8HPECLIC
  • HPEC Toll-Quality echo cancellation software is designed to operate under 32-bit and 64-bit Linux on x86-32 and x86-64 compatible processors, and provides echo cancellation for configurable tail lengths of 16ms (128 taps), 32ms (256 taps), 64ms (512 taps), and 128ms (1024 taps).
  • Digium provides DSP-based echo cancellation modules for all T1/E1/J1, analog and BRI/Hybrid card models.
  • Leading Digium to recommend that users requiring 8 channels at 1024 taps run a PC comparable to a 3.0 GHz Pentium 4, while users only requiring 4 channels at 1024 taps may run a 2.5 GHz Pentium Celeron.
  • It is unwise to operate this echo canceller at 1024 taps for a full T1 or E1 of channels.

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