Which two of the following statements about H.

When functioning as a back-to-back gateway, the Net-Net 4000 appears as just one H.323 gateway to a single network.

The Net-Net 4000 supports H.323 versions 1-6.

Multiple virtual gateways or gatekeepers can exist on a single Net-Net 4000.

There is a feature that allows an H.323 terminal that is unable to support Fast Start to receive a Slow Start call from a Fast Start source through the Net-Net 4000.