Commercial bandwidth

Commercial bandwidth is a term for the regular capacity of the telephone network required for intelligible speech. It was defined as 300 hertz to 3,400 hertz, although the modern PSTN is theoretically capable of transmitting from 0 Hz to 7,000 Hz using ISDN^[1].

References

1. ^ multi-user ISDN

See also

• DS0
• Bandwidth (signal processing)
• voiceband

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