E1, T1 and DS3 Echo Cancellers and Voice Quality Enhancement (VQE)

Overview

Valiant offers a wide range of echo cancellation and voice quality enhancement (VQE) solutions for the following network situations:

The echo canceller equipment is compliant to ITU-T G.164, G.165, G.168 (2000 / 2002) requirements for echo cancellation. The echo canceller supports fax / modem G.164 and G.165 (2100 Hz) tone disable function.

  • Wireline, International Gateway, Wireless, Satellite and IP Gateways
  • Long distance telephony, GSM, CDMA, TDMA, VoIP, satellite and radio communication applications
  • E1 Signaling Support: The E1 echo cancellers supports the following signaling protocols:
    • 30B+D PRI ISDN (Euro ISDN) signaling,
    • 31B (31 voice channels) with out-of-band signaling,
    • R2 CAS Signaling,
    • SS7, C7 signaling (on any user selected time-slot).
    • C5, CCS, Q50 (AB/CD),
    • All signaling options are User Selectable / User Configurable.
  • T1 Signaling Support: The T1 echo cancellers supports the following signaling protocols supported:
    • 24B (24 Voice Channels) with out-of-band signaling (C7 / SS7 Signaling on any user selected time-slot)
    • 23B+D, PRI ISDN (23 Voice Channels + D Signaling Channel),
    • D4 Robbed Bit Signaling,
    • CCS (C6, C7),
    • RBS (E&M, PLR, FXS-GS, FXO-GS, FXS-LS, FXO-LS)
    • All signaling options are User Selectable / User Configurable.

The echo canceller equipment is compliant to ITU-T G.164, G.165, G.168 (2000 / 2002) requirements for echo cancellation. The echo canceller supports fax / modem G.164 and G.165 (2100 Hz) tone disable function.


Type of Echo Cancellers offered:

E1 Echo Canceller (1 x E1)

E1 (1 x E1) Echo Canceller in 1U high, 19 Inch Rack mount shelf, with telnet. 64ms Bi-Directional / 128ms. Uni-Directional - user selectable.

E1 Echo Canceller (1 x E1) Data Sheet (PDF)

E1 Echo Cancellers (10 x E1)

E1 (10 x E1s) Echo Cancellers in 3U high, 19 Inch Rack mount shelf, with telnet.64ms Bi-Directional / 128ms. Uni-Directional - user selectable.

E1 Echo Cancellers (10 x E1) Data Sheet (PDF)

E1 Echo Cancellers with Voice Quality Enhancement (VQE)

128ms Bi-Directional compact 8 x E1 Echo Canceller with Voice Quality Enhancement (VQE) features in a 19-inch, 1U (44mm height) chassis, with echo-tail programmable from 0ms. to 896ms. Cancel echo at near-end and far-end with single installation.

E1 Echo Cancellers with Voice Quality Enhancement (VQE) Data Sheet (PDF)

T1 Echo Canceller (1 x T1)

T1 (1 x T1) Echo Canceller in 1U high, 19 Inch Rack mount shelf, with telnet. 64ms Bi-Directional / 128ms. Uni-Directional - user selectable.

T1 Echo Canceller (1 x T1) Data Sheet (PDF)

T1 Echo Canceller (10 x T1)

T1 (10 x T1) Echo Cancellers in 3U high, 19 Inch Rack mount shelf, with telnet. 64ms Bi-Directional / 128ms. Uni-Directional - user selectable.

T1 (10 x T1) Echo Cancellers in 3U high Data Sheet (PDF)

T1 Echo Cancellers with Voice Quality Enhancement (VQE)

128ms Bi-Directional compact 8 x E1 Echo Canceller with Voice Quality Enhancement (VQE) features in a 19-inch, 1U (44mm height) chassis, with echo-tail programmable from 0ms. to 896ms. Cancel echo at near-end and far-end with single installation.

E1 Echo Cancellers with Voice Quality Enhancement (VQE) Data Sheet (PDF)

DS3 Echo Cancellers with Voice Quality Enhancement (VQE)

Industry's most compact DS3 Echo Canceller and Voice Quality Enhancement (VQE) solution with echo tail programmable feature from 0 ms. to 896 ms. Echo cancellation on each channel is 128 ms. Bi-directional (near-end and far-end) echo cancellation.

E1 Echo Cancellers with Voice Quality Enhancement (VQE) Data Sheet (PDF)