User manual CONEXANT COMMANDS FOR HOST-PROCESSED MODEMS REFERENCE MANUAL

[. . . ] 100498E February 9, 2004 Commands for Host-Processed Modems Reference Manual Revision Record Revision 100498E 100498D 100498C (Marked 1118, Rev. 1) 100498A (Marked 1118) Date 2/9/2004 4/5/2001 2/5/1999 9/9/1998 5/30/1997 Comments Rev. Information in this document is provided in connection with Conexant Systems, Inc. These materials are provided by Conexant as a service to its customers and may be used for informational purposes only. [. . . ] Syntax +DS44=[<direction>[, < compress_negotiation >[, <capability>[, <max_codewords_tx> [, <max_codewords_rx>[, <max_string_tx>[, <max_string_rx>[, <max_history_tx> [, <max_history_rx>]]]]]]]]] Defined Values <direction> Decimal number that specifies the desired direction(s) of operation of the data compression function; from the DTE point of view. (Default. ) <compress_negotiation> Decimal number that specifies whether or not the modem should continue to operate if the desired result is not obtained. 0 1 <capability> Do not disconnect if V. 44 is not negotiated by the remote DCE as specified in <direction>. (Default. ) Disconnect if V. 44 is not negotiated by the remote DCE as specified in <direction>. Decimal number that specifies the use of stream method, packet method, multi-packet method. Multi-packet method. <max_codewords_tx> Decimal number from 256 to 2048 that specifies the maximum number of codewords which should be negotiated in the transmit direction. (Default = 2048. ) Decimal number from 256 to 2048 that specifies the maximum number of codewords which should be negotiated in the receive direction. (Default = 2048. ) Decimal number from 32 to 255 that specifies the maximum string length to be negotiated in the transmit direction. (Default = 32. ) Decimal number from 32 to 255 that specifies the maximum string length to be negotiated in the receive direction. (Default = 32. ) Decimal number from 2048 to 4096 that specifies the maximum size of the history buffer to be negotiated in the transmit direction. (Default = 4096. ) Decimal number from 2048 to 4096 that specifies the maximum size of the history buffer to be negotiated in the receive direction. (Default = 4096. ) <max_codewords_rx> <max_string_tx> <max_string_rx> <max_history_tx> <max_history_rx> 3-46 Conexant 100498E Commands for Host-Processed Modems Reference Manual Reporting Current or Selected Values Command: +DS44?Response: +DS44:<direction>, <compression_negotiation>, <capability>, <max_codewords_tx>, <max_codewords_rx>, <max_string_tx>, <max_string_rx>, <max_history_tx>, <max_history_rx> +DS44:3, 0, 0, 2048, 2048, 32, 32, 4096, 4096 For the default setting. Example: Reporting Supported Range of Parameter Values Command: +DS44=?Response: +DS44:(list of supported <direction> values), (list of supported <compression_negotiation> values), (list of supported <capability> values), (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) +DR - Data Compression Reporting This extended-format numeric parameter controls whether or not the extended-format "+DR: " intermediate result code is transmitted from the modem to the DTE (see Section 3. 4 and Table 3-14). The more recent setting of +DR or S95 bit 5, and the W command setting, determines the actual data compression result code reporting (see S95 Parameter and W Command). Syntax +DR=[<value>] Defined Values <value> decimal number corresponding to the selected option: 0 1 Reporting Current or Selected Values Command: +DR?Response: Example: +DR: <current value> +DR: 1 For the default setting. (Default. ) Reporting Supported Range of Parameter Values Command: +DR=?Response: Example: +DR: (<value> range) +DR: (0, 1) 100498E Conexant 3-47 Commands for Host-Processed Modems Reference Manual +DR: <type> Intermediate Result Code The +DR: <type> reported represents the current (negotiated or renegotiated) modem-modem data compression type. If enabled, the intermediate result code is transmitted at the point after error control negotiation (handshaking) at which the modem has determined which data compression technique will be used (if any) and the direction of operation. The +DR intermediate result code, if enabled, is issued after the Error Control Report (+ER) and before the final result code (e. g. , CONNECT). The format of this result code is: Result Code Syntax +DR: <type> Defined Values <type> An alphanumeric code corresponding to the selected option: NONE Data compression is not in use. MNP 5 compression. %C - Enable/Disable Data Compression Enables or disables data compression negotiation. [. . . ] 3-74 AT=x - Write to Selected S-Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74 D D - Dia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25 100498E Conexant Commands for Host-Processed Modems Reference Manual E E - Command Echo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 S1 - Ring Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75 S10 - Lost Carrier To Hang Up Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]