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Does the U1930 support polarity reversal signals

All U1900 series voice gateways, including U1930, support polarity reversal signals.

Other related questions:

Do FXS interfaces on a 4FXS1FXO interface card support polarity reversal

FXS interfaces on a 4FXS1FXO interface card support polarity reversal. This function is disabled by default.

Can circular polarization and cross polarization be used on WLAN networks? What are their usage scenarios

Circular polarization has not been applied to WLAN networks. Cross polarization (+45 and - 45 degrees) is used on outdoor post antennas. Cross-polarized antennas provide wireless signals at 2.4 GHz and 5 GHz frequency bands.

What browser versions are supported by the U1930?

The U1930 supports Internet Explorer 7.0, 8.0, and 9.0. The browser to use must support ActiveX and JavaScript.

Does the U1930 support the call duration restriction service

All U1900 series voice gateways, including U1930, support the call duration restriction service.

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Does the U1930 support polarity reversal signals

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