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CHAPTER 5: AT Commands, S-Registers, and Result Codes
+DS44=?
Reports supported options in the format (list of
supported direction values), (0), (0), (list of
supported max_codewords_tx values), (list of
supported max_codewords_rx values), (list of
supported max_string_tx values), (list of supported
max_string_rx values), (list of supported
max_history_tx values), (list of supported
max_history_rx values). Example: +DS44: (3, 0), (0),
(0), (256-2048), (256-2048), (31-255), (31-255),
(512-11008), (512-11008).
+DS44?
Reports current options in the following format:
direction, 0, 0, max_codewords_tx,
max_codewords_rx, max_string_tx, max_string_rx,
max_history_tx, max_history_rx.
Example: +DS44: 3, 0, 0, 1024, 1024, 255, 255, 5120,
4096.
Subparameters
direction
Specifies the DTE direction of the data compression.
0
No compression.
3
Compression in both directions (default).
max_codewords_tx
Specifies the maximum number of code words to be
negotiated in the transmit direction.
1024
Default.
256–2048
Maximum number of code words in transmit
direction.
max_codewords_rx
Specifies the maximum number of code words to be
negotiated in the receive direction.
1024
Default.
256–2048
Maximum number of code words in receive
direction.
max_string_tx
Specifies the maximum string length to be
negotiated in the transmit direction.
255
Default.
31–255
Maximum string length in transmit direction.