Which ITU standard enables videoconferencing interoperability over Plain Old Telephone Service (POTS)?

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Multiple Choice

Which ITU standard enables videoconferencing interoperability over Plain Old Telephone Service (POTS)?

When videoconferencing must work over ordinary telephone lines, you need a standard that covers signaling, control, and codecs for a very narrow bandwidth. H.324 is designed for multimedia communication over plain old telephone service (POTS) and other narrowband networks, providing the complete stack that lets devices from different vendors interoperate over PSTN. It specifies how calls are established and carried, using codecs suited to low bandwidth, so audio and video can flow reliably on standard phone lines. The other options don’t fit this purpose. HIPAA governs patient privacy and security, not interoperability. HL-7 is about health information messaging and data exchange. H.261 is an older video codec, but by itself it doesn’t establish the full interoperable framework for POTS videoconferencing.

When videoconferencing must work over ordinary telephone lines, you need a standard that covers signaling, control, and codecs for a very narrow bandwidth. H.324 is designed for multimedia communication over plain old telephone service (POTS) and other narrowband networks, providing the complete stack that lets devices from different vendors interoperate over PSTN. It specifies how calls are established and carried, using codecs suited to low bandwidth, so audio and video can flow reliably on standard phone lines.

The other options don’t fit this purpose. HIPAA governs patient privacy and security, not interoperability. HL-7 is about health information messaging and data exchange. H.261 is an older video codec, but by itself it doesn’t establish the full interoperable framework for POTS videoconferencing.

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