What are VoIP phones with dialup modem connections?

VoIP phones with dialup modem connections are very similar to VoIP phones with Ethernet connections.

Instead of connecting to an Ethernet network, these VoIP phones dialup over the PSTN to VoIP service providers.

Using a VoIP phone with a dialup modem connection requires a regular analog POTS telephone line, but enables long-distance and international calls to be made over VoIP networks, usually at a significant savings.

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