MC55_ATC_V04.00 Page 28 of 475 3/17/06
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1.9 Errors and Messages
The command result codes "+CME ERROR: <err>" and "+CMS ERROR: <err>" indicate errors related to mobile
equipment or network functionality.
The format of <err> can be either numeric or verbose and is selectable via AT+CMEE.
A result error code terminates the execution of the command and prevents the execution of all remaining com-
mands that may follow on the same command line. If so, neither "ERROR" nor "OK" result codes are returned
for these commands. A 30 seconds timeout will deliver "ERROR" when the input of a command is not complete.
Using the wrong command syntax may result in errors: For example, using the execute command syntax
although the command has no execute format, causes "ERROR" to be returned. Likewise, using the write com-
mand syntax although the command has no write format causes "+CME ERROR: <err>" to be returned.
See also:
• Section 2.11.1, CME/CMS Error Code Overview
• Section 2.5.1, Verbose and numeric result codes
• Section 3.4, AT+CEER
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