AP72-01 Page 1 Issue 6
GSGC6 Command Language
The AT Command Set
A Hayes type AT command/response interface is used to communicate with the
GSGC6 internal Terminal adapter. Data sent to the TA are treated as commands and data
received from the TA are treated as responses (eg result codes).
All command lines must begin with the characters AT and must be entered in a single
case. Multiple commands may be strung together up to a maximum length of 38 characters,
including the AT prefix. Command strings may contain spaces to enhance readability except in
the AT prefix.
Most commands that take a numeric parameter will default to 0 if the parameter is not
supplied on the command line. An example would be: ATS0=1&W - which will switch auto-
answer on, and then store this set-up as user default 0. Note that the Z (reset) command should
only be used in at the end of a command string, as this command will reset the TA and cause it
to lose the remainder of the command line entered.
If the TA receives an AT command that is valid in structure, but not in the list below,
the Adaptor will generally return an 'OK' to be compatible with existing Terminal
Adaptor/application software implementations. Otherwise an 'ERROR' response will be
returned.
The AD Command Set
A Glensound AD command/response interface is used to communicate with the
GSGC6 internal Codec & DTMF system. Data sent to the GSGC6 are treated as commands and
data received from the GSGC6 are treated as responses (eg result codes).
All command lines must begin with the characters AD and must be entered as single
commands.
