This document specifies the AT command set for the Lucent Technologies Venus chip set. Note that if a par ticular modem board does not suppor t a feature, such as voice, then the corresponding commands are disabled for that mode. AT commands are issued to the modem to control the modem’s operation and software configuration. AT commands can only be entered while the modem is in command mode. The format for entering commands is ATXn where X is the AT command and n is the specific value for that command
