Technical information

Improved OEM Features
1-14 AT Commands Reference Manual August 5, 2008
"read" state still indicate actually used / unused sockets include sockets, allocated for active FTP
connection:
AT+MIPOPEN? indicates inactive sockets (include allocated for active FTP connection)
AT+MIPCLOSE? indicates active sockets (include allocated for active FTP connection)
When G24 receives +MIPCLOSE command for closing a socket, used within FTP connection,
the error code: 302 (FTP session is active) is returned to the user.
Audio
Overview
The audio (digital and analog) feature in the G24 module involves three main issues: path (routes
the current input and output devices), gain (volume management) and algorithm. For more
information, refer to “Audio” on page 3-235.
Features and Benefits
The following algorithm related features are provided:
Sidetone
Sidetone reduces the microphone audio input that is routed to the selected speaker so that the
person speaking can hear himself or herself talking. This creates a slight echo because the speaker
sound then gets picked up again by the microphone and is again routed to the speaker, and so on.
Echo suppress is designed to take care of this echo.
Figure 1-4: Sidetone