MultiModemDID User Guide |
| Chapter 4 - AT Commands, |
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Command: +DR=n | V.44 Data Compression Reporting | |
Values: | n = 0 or 1 | |
Default: | 0 |
|
Description: | Enables or disables the V.44 data compression report. If the | |
| compression report is enabled, the +DR:<type> intermediate | |
| result code reports the current | |
| It is issued after the Error Control Report (+ER) and before the | |
| final result code (e.g., CONNECT). The intermediate result | |
| code descriptions are shown after the command descriptions. | |
+DR=0 | Disables the V.44 compression report. | |
+DR=1 | Enables the V.44 compression report. | |
+DR=? | Displays the allowed values. | |
+DR? | Displays the current value. | |
+DR: NONE | Data compression not in use. | |
+DR: V42B V.42bis is in use in both directions. | ||
+DR: V44 | V.44 is in use in both directions. | |
Command: +DS44=n V.44 Data Compression | ||
Values: | See description | |
Default: | See description | |
Description: | Controls the V.44 data compression function. | |
| The command syntax is +DS44=[direction][,[0][,[0] | |
| [,[max_codewords_tx][,[max_codewords_rx][,[max_string_tx] | |
| [,[max_string_rx][,[max_history_tx][,[max_history_rx]]]]]]]]]<CR> | |
| Subparameters that are not entered retain their current value. | |
| Commas separate optional subparameters, and must be inserted | |
| to skip a subparameter. Example: +DS44=,,,2048,2048<CR> | |
| changes the maximum number of code words in both | |
| directions, and keeps all other settings at their current values. | |
+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), | |
| ||
+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. |
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