Smart Machine Smart Decision
SIM800 Series_Bluetooth_Application_V1.02
45
2014-06-30
5.5.AT+CMGS
SIM800 BT does not support sending message by phonebook index or name.
5.6.AT+CMSS
SIM800 BT does not support sending message from storage.
5.7.AT+CPMS
SIM800 BT
SIM800
AT+CPMS=?
+CPMS:
("SM","ME","MT"),("SM","ME","MT"),(
"SM","ME","MT")
OK
AT+CPMS=?
+CPMS:
("SM","ME","SM_P","ME_P","MT"),("S
M","ME","SM_P","ME_P","MT"),("SM"
,"ME","SM_P","ME_P","MT")
OK
Difference
SIM800 BT supports three modes: "SM","ME","MT".
SIM800 supports "SM","ME","SM_P","ME_P","MT" modes.
5.8.AT+CHFA
SIM800 BT
SIM800
AT+CHFA=?
+CHFA: (0=NORMAL_AUDIO,
1=AUX_AUDIO, 2=HANDFREE_AUDIO,
3=AUX_HANDFREE_AUDIO,
4=PCM_AUDIO,5=
BT_CHANNEL)
OK
AT+CHFA=?
+CHFA: (0=NORMAL_AUDIO,
1=AUX_AUDIO, 2=HANDFREE_AUDIO,
3=AUX_HANDFREE_AUDIO,
4=PCM_AUDIO)
OK
Difference
Value of parameter <n> has BT audio channel in SIM800 BT.
BT channel can be set when BT link is established and module acts as mobile
phone. After switch to BT channel, local sound can be transferred to BT
earphone. If BT link is disconnected, audio channel will restore to the original
channel and URC +CHFA: <n> is reported. Because the audio service is always
on after switch to BT channel, consumption current is bigger than normal.
5.9.TTS function
SIM800 BT which module memory is 32M does not support TTS function.
