ITU V.61 is a standard for Analog Simultaneous Voice and Data (ASVD), a MODEM related standard for use over a POTS line or leased line.

The V.61 Standard can be downloaded free of charge in several languages.

See Also

• V.70 Digital Simultaneous Voice and Data
• ITU-T V-Series Recommendations

References

• USB Communications Device Class Specification

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