Hitachi Exploring the 24000/56 Data Rate for PDA and Smartphone Modems

Models: HPW-200EC

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CARRIER 24000 (56)

CARRIER 26400 (57)

CARRIER 28800 (58)

CARRIER 31200 (60)

CARRIER 33600 (65)

The modem sends one of these when the indicated data rate (in bps) has been detected on the line and carrier reporting has been enabled.

COMPRESSION: V.42bis (67)

COMPRESSION: NONE (69)

One of these is sent when the modem has connected in V.42bis and COMPRESSION message reporting has been enabled.

PROTOCOL: NONE (76)

PROTOCOL: LAPM (77)

One of these is sent to the DTE when the modem has connected without any form of error correction or LAPM correction, and the PROTOCOL message reporting has been enabled.

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Hitachi HPW-200EC manual Compression V.42bis, Compression None