The echo canceller solutions are ideal for long distance telephony, GSM, CDMA, TDMA, VoIP, satellite and radio communication applications.
Also available E1 Echo Cancellers with 30B+D PRI ISDN (Euro ISDN) signaling, 31B (31 voice channels) with out-of-band signaling, R2 CAS Signaling, SS7 signaling - on any user selected time-slot, in a 19 inch, 1U high (44mm height) chassis and accommodates 1, E1 echo canceller with telnet.
Features and Highlights
T1 Echo Canceller - Highlights
The echo canceller equipment offers fault recovery feature. It offers automatic by-pass upon power-supply failure (i.e. it offers E1 circuit by-pass in the event of power supply failure).
Remote Monitoring and Control
Unique T1 Echo Canceller Features:
USER PROGRAMMABLE TAIL DISPLACEMENT: User definable echo-tail displacement is selectable between 0ms. to 896ms. on the return-path. This feature allows the user to cancel echo-tails in BOTH directions (both near-end and far-end echo tails), even in most demanding conditions that are common on VoIP networks and satellite links.
USER PROGRAMMABLE SIGNALING OPTION: The T1 echo cancellers supports the following signaling protocols: 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 Programmable. Allows digital data transmission on user-selected time-slots.
USER PROGRAMMABLE DEDICATED DATA CHANNELS: The User my specify / define the dedicated data channels so that they are ALWAYS and COMPLETELY BYPASSED from the echo-cancellation circuitry - leaving those specifically assigned dedicated time-slots for digital data transmission (including video transmission).
The T1 echo canceller supports 2100 Hz fax / analog data modem tone detection and echo canceller disabling on all channels.
Applications for the E1 Echo Cancellers
Central Office and PBX Applications
Voice Over ATM Applications
Satellite Communications Applications
Voice Over Frame Relay, ATM Applications
Application # 1: Application 1 - Echo cancellers: ATM / Frame Relay
Application # 2: Application 2 - Echo cancellers: Satellite Link
Application # 3: Application 3 - Uni-directional echo canceller
Application # 4: Application 4 - Uni-directional echo canceller
Application # 5: Application 5 - Bi-directional echo canceller
Data Sheet (PDF)