bit robbing

Referring to the process in a channel bank or T1 time division multiplexer (TDM)

whereby the least significant bit (LSB) in a byte is robbed and a signaling bit is inserted, thereby truncating the eight-bit voice sample to seven bits. Bit robbing does not affect the quality of pulse-code modulated (PCM) voice, as seven bits are quite satisfactory for reconstructing a high-quality approximation of the

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