MC52i AT Command Set

MC52i AT Command Set
2.13 AT^SCFG
(str)
Audio Loop Setting
This parameter can be used to configure an audio loop for performing a simple verification of audio connections.
The feature is intended for testing only.
Full audio processing will be performed. Audio parameterization capabilities remain nearly unrestricted. Microphone
and loudspeaker ports can be selected with random access. The audio loop cannot be used in combination
with the digital audio interface. Neither a SIM-card nor a GSM network is necessary to turn the audio loop on.
Turning the audio loop on activates audio mode 0 which cannot be selected during normal operation of the module.
Turning the audio loop off activates audio mode 1. The active audio mode can be verified via AT^SNFS.
Audio mode 0 contains linear filters and neither echo canceller nor noise suppression are activated. It is also
possible to select any other audio mode. These audio modes use the parameterization set as default during normal
operation of the module.
Activation of the audio loop turns sidetone off, even if sidetone is on in the selected audio mode during normal
operation.
Audio path can be selected via AT command AT^SAIC. Audio mode can be selected via AT command
AT^SNFS.
Parameter is global for all interfaces, volatile and will not be reset by AT&F.
“0“ (P) No audio loop active
“1“ Audio loop active
(str)(+CSCS)
Call Speech Version1
This parameter can be used to query or configure the speech version 1 indication in the bearer capabilities in
case of voice calls (see GSM 04.08). Speech version 2 (EFR) is always enabled; speech version 3 ( AMR) is
not affected by this command.
If you try to change this parameter as long as a circuit switched call is active, the command returns the new value
and "OK", but the changes will not take effect before next call setup.
Parameter is global for the ME, volatile and will not be reset by AT&F.
“0“ (P) FR and HR codecs are enabled for speech calls - full rate codec is preferred.
“1“ FR and HR codecs are enabled for speech calls - half rate codec is preferred.
“2“ Half rate codec is disabled for speech calls.
(str)(+CSCS)
GPRS ATS0 with Attach
This parameter can be used to control the behaviour of ATS0.
Parameter is global for all interfaces, volatile and will not be reset by AT&F.
“on“ (P)
When the ATS0= (>0) command is received, the MT will attempt to perform
a GPRS attach.
“off“
When the ATS0= (>0) command is received, the MT will not attempt to
perform a GPRS attach.
MC52i_ATC_V01.201 Page 56 of 551 4/16/10
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