Lucent Technologies Host-Based Controller Modem AT Modem User Manual


 
Host-Based Controller Modem Data Addendum
AT Command Set June 15, 1998
AT Commands for Homologation Testing and Debugging (continued)
Lucent Technologies Inc. Version 1.0
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Modifying Homologation Parameters
Once the modem is configured for a country, the homologation parameters shown in Table 3 can be temporarily
altered for that country with the following AT command
AT%T21,par#,param_value
where par# and param_value should be entered in HEX. For example, AT%T21,7,28 sets the call progress
threshold to -40 dB. AT%T22,par# displays the current value of the parameter in HEX. The par# parameter
descriptions are shown in Table 3. The country specific default values (param_value) are shown in Table 4.
Note: If a parameter is changed with the AT%T21 command, the ATZ and AT&F commands do not reset the
homologation parameters to the default values (i.e., the changes made are not reset until the power is turned off).