AirPrime and HL7548 AT Commands Interface Guide Rev10 0

Table Of Contents
4116303 Rev 10.0 August 10, 2017 29
AT Commands Interface Guide
V25ter AT Commands
2.10. X Command: Result Code Selection and Call
Progress Monitoring Control
HL7518 and HL7548
Write command
Syntax
ATX[<value>]
Response
OK
or
+CME ERROR: <err>
Parameters
<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 CONNECT<text> result code returned, dial tone and busy detection
are both enabled
Notes
This command defines the result code to be returned, as well as sets the dial tone
or busy detection features.
<value> is saved in non-volatile memory per AT port over module reboot.
2.11. &C Command: Set Data Carrier Detect (DCD)
Function Mode
HL7518 and HL7548
Execute command
Syntax
AT&C<value>
Response
OK
Parameters
<value> 0 DCD line is always active
1 DCD line is active in the presence of data carrier only
Reference
V.25Ter
Notes
DCD/AT&C is only applicable to the USB AT port; it has no effect on UART1.