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LM567C: Does the Inband/Outband in the spec refer to the telephony term or the bandwidth?

Part Number: LM567C

In the spec there is a "Largest Simultaneous Outband Signal to Inband Signal Ratio" spec. Does Inband here refer to the telephony in-band (i.e. 300-3.4k Hz)? Or does it refer to the bandwidth about the frequency of detection that triggers the chip?