SIM800 datasheet(374/380 Pages) SIMCOM

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SIM800 Series_AT Command Manual_V1.09

374

2015-08-03

SIM800C-DS.

The default gain level of aux audio channel is 9 in SIM800V, SIM840V, SIM800W, SIM840W,

SIM800W16 and SIM840W16.

The default gain level of aux audio channel is 8 in SIM800C, SIM800A and SIM800F.

21.3 AT+CBAND

SIM800V, SIM800W,SIM800W16,SIM800A

SIM840V,SIM840W,SIM840W16,SIM800H,SI

M800L, SIM800,SIM800M64,SIM800G,

SIM808,SIM800C,SIM800F,SIM800C-DS

AT+CBAND=?

+CBAND:

(EGSM_MODE,DCS_MODE,EGSM_DCS

_MODE,ALL_BAND)

AT+CBAND=?

+CBAND:

(EGSM_MODE,DCS_MODE,GSM850_MOD

E,PCS_MODE,EGSM_DCS_MODE,GSM850

_PCS_MODE,EGSM_PCS_MODE,ALL_BAN

Difference:

SIM840V, SIM840W, SIM840W16,SIM800H, SIM800L, SIM800, SIM800M64, SIM800G,

SIM808, SIM800C, SIM800F and SIM800C-DS support Quad-band.

21.4 AT+CHFA

SIM800V, SIM840V,SIM800W,

SIM840W,SIM800W16,SIM840W16

SIM800H,SIM800L,SIM800,SIM800M64,

SIM808,SIM800C,SIM800A

AT+CHFA=?

+CHFA: (0 = NORMAL_AUDIO, 1 =

AUX_AUDIO)

AT+CHFA=?

If it is SIM800 and SIM800M64

+CHFA: (0 = NORMAL_AUDIO, 2 =

HANDFREE_AUDIO,4=PCM_AUDIO)

If it is SIM800H,SIM800L, SIM808 or

SIM800C-DS

+CHFA: (0 = NORMAL_AUDIO, 1 =

AUX_AUDIO, 2 = HANDFREE_AUDIO,

3 = AUX_HANDFREE_AUDIO, 4 =

PCM_AUDIO)

If it is SIM800C,SIM800A,SIM800F

+CHFA: (0 = NORMAL_AUDIO, 2 =

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