| FIGURE 2 |
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| This circuit uses two PCM codecs and two echo-cancellation ICs, one of which cancels echoes on the acoustic side (IC2) and one of which cancels echoes on the line side (IC3). |
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| FIGURE 2 |
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| This circuit uses two PCM codecs and two echo-cancellation ICs, one of which cancels echoes on the acoustic side (IC2) and one of which cancels echoes on the line side (IC3). |
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