beautypg.com

Airlink AML001 User Manual

Page 50

background image

Appendix A AT Commands

49

Use this command to configure the V.44 data compression method used by
the modem. The soft modem never disconnect if V.44 is not negotiated and

always use the streaming method for data transfers.

As a result, and are always 0.

The parameter sets which directions use the compression method.

The soft modem use compression in one or both directions.

Valid Values:
0

Modem negotiates no V.44 compression.

1

Modem negotiates transmit only V.44 compression.

2

Modem negotiates receive only V.44 decompression.

3

Modem accepts compression in both or either direction

(default).

The parameter specifies the maximum number of code
words to negotiate in the transmit direction. The
parameter specifies the maximum number of code words to negotiate in the

receive direction.

Valid and Values:

2048

Default and

value.

512, 1024, 2048

Valid transmit and receive code word settings.

The parameter specifies the maximum string length to
negotiate in the transmit direction. The parameter specifies

the maximum string length to negotiate in the receive direction.

Valid and Values:
255

Default and value.

32—255

Valid transmit and receive string lengths.

The parameter specifies the maximum length of the
history buffer to negotiate in the transmit direction. The
parameter specifies the maximum length of the history buffer to negotiate in

the receive direction.

Valid and Values:

6144

Default and

value.

1024, 2048, 4096, 1536, 3072, 6144

Valid maximum transmit and receive

history buffer sizes.