AT Commands Reference Manual

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AT Commands Reference Manual 1.1.4 ConfigurACE II for Windows Utility Program The PC-based ConfigurACE II for Windows utility program allows the OEM to customize SmartACF and SmartACFL modem firmware to suit specific application and country requirements. ConfigurACE II for Windows allows programming of functions such as: • Loading of multiple sets of country parameters • Loading of NVRAM factory profiles • Call progress and blacklisting parameters • Entry of S parameter maximum/minimum/default values • Limitation of transmit levels • Modification of factory default values • Customization of the ATI4 response • Customization of fax OEM messages • Enabling of Telephony Extension features • Direct Mode This program modifies the hex object code which can be programmed directly into the system Flash ROM. Lists of the generated parameters can be displayed or printed. Conexant-provided country parameter files allow a complete set of country-specific call progress and blacklisting parameters to be selected. Refer to the ConfigurACE II for Windows software for a detailed description of capabilities and the operating procedure. 1.2 Reference Documentation Document Title SmartSCM Modem Data Sheet 100490 SmartACF Modem Data Sheet 100488 SmartACFL Modem Data Sheet 100444 SC56D Modem Data Sheet 101098 Document No. 1-2 Conexant 100722B
AT Commands Reference Manual 2 Syntax and Procedures The command and response syntax and procedures generally conform to referenced recommendations and standards. Since these recommendations and standards describe characteristics universal to a large installed base of modems to a maximum degree, there may be syntax and procedural differences due to extensions and behavioral differences in implemented commands, parameters, and responses beyond that described in these recommendations and standards. The syntax and procedures described in this section are based on V.250 and V.253 with additional information included for implemented extensions, behavioral differences beyond V.250, and legacy commands. 2.1 Alphabet The T.50 International Alphabet 5 (IA5) is used in this document. Only the low-order seven bits of each character are significant to the modem; any eighth or higher-order bit(s), if present, are ignored for the purpose of identifying commands and parameters. Lower-case characters are considered identical to their upper-case equivalents when received by the modem from the DTE. Result codes from the modem are in upper case. 2.2 DTE Commands Lines Words enclosed in are references to syntactical elements. The brackets are not used when the words appear in a command line, the brackets are not used. Words enclosed in [square brackets] represent optional items which may be omitted from the command line at the specified point. The square brackets are not used when the words appear in the command line. Other characters that appear in syntax descriptions must as included as shown. Any modem responses are mentioned in terms of their alphabetic format; the actual response issued will depend on the setting of parameters that affect response formats, e.g., Q and V commands (see 2.7). 2.2.1 Command Line General Format A command line is made up of three elements: the prefix, the body, and the termination character. The command line prefix consists of the characters "AT" or "at" or, to repeat the execution of the previous command line, the characters "A/" or "a/". The body is made up of individual commands described in this document. Space characters (IA5 2/0) are ignored and may be used freely for formatting purposes, unless they are embedded in numeric or string constants. The termination character may not appear in the body. The modem can accept at least 50 characters in the body. The termination character may be selected by a user option (parameter S3), the default being CR. 100722B Conexant 2-1
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