Lenovo ThinkPad T520 (English) User Guide - Page 78

Table 3. Modem command list (continued) Command Description Syntax &F Set to Factory Defined &F Configuration &T Local Analog Loopback &T[] Test I Request Identification I[] Information +GMI +GMM Request Manufacturer Information Request Model Information +GMI +GMM 60 User Guide Values to the speed buffered normal mode. 4: Select LAPM error-correction mode and forces &Q5 (the modem will try to negotiate an error corrected link). Failure to make an LAPM error-correction connection result in the modem hanging up. 5: Selects MNP error-correction mode and forces &Q5 (the modem will try to negotiate an error corrected link). Failure to make an MNP error-correction connection results in the modem hanging up. 0: Terminates test in progress. 1: Initiates local analog loopback, V54 Loop 3. If a connection exists when this command is issued, the modem hangs up. The CONNECT XXXX message is displayed up the start of the test. 0: Reports product code. 1: Reports the latest significant byte of the stored checksum in decimal. 2: Reports OK. 3: Reports identification codes. 4: Reports product description from the .INF file. 5: Reports Country Code parameter. 6: Reports modem data pump model and internal code revision. 7: Reports modem data pump model and internal code revision. 8: Reports the date and the time of the modem driver build. 9: Reports Country.