Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 220 Ver. 1.00 – 10/29/2008
4.3.6. $MICANR Ambient Noise Reduction Control
(continued)
< tone count > 0 => no tone detection
1 => single tone detection
2 => dual tone detection (DTMF)
Reference N/A
Standard Scope Optional
Enfora Implementation Scope Full
Notes
Examples
AT$MICANR=1,1,1,7,1 Start ANR, ANR+Tone enabled, 6 dB
attenuation, threshold 21 dB, single tone
detection.