Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 33 23.06.2010
2.2.26 ATX Set CONNECT Result Code Format and Monitor Call Progress
ATX Set CONNECT Result Code Format and Monitor Call Progress
Response
This parameter setting determines whether or not the TA detected the
presence of dial tone and busy signal and whether or not TA transmits
particular result codes
OK
ERROR
Execution
Command
ATX<value>
Parameter
<value> 0 CONNECT result code only returned, dial tone and
busy detection are both disabled
1 CONNECT<text> result code only returned, dial tone
and busy detection are both disabled
2 CONNECT<text> result code returned, dial tone
detection is enabled, busy detection is disabled
3 CONNECT<text> result code returned, dial tone
detection is disabled, busy detection is enabled
4 ONNECT<text> result code returned, dial tone and C
busy detection are both enabled
Reference
V.25ter
Note
2.2.27 ATZ Reset Default Configuration
ATZ Reset Default Configuration
Response
TA sets all current parameters to the user defined profile.
OK
ERROR
Execution
Command
ATZ[<value>]
Parameter
<value> 0 Restore profile 0
1 Restore profile 1
Reference
V.25ter
Note
Parameter impacted by Z command:
Command Parameter name Default value
ATE <echo> 0x01
ATQ <result> 0x00
ATV <format> 0x01