Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 103 / 231
Example
ATD10086; //Establish a call
OK
AT+CLCC
+CLCC: 1,0,0,1,0,"",128 //PS call in LTE mode
+CLCC: 2,0,0,0,0,“10086”,129 //Establish a call, and the call has been answered
OK
7.16. AT+CR Service Reporting Control
The command controls the module whether or not to transmit an intermediate result code +CR: <serv> to
the TE when a call is being set up.
If it is enabled, an intermediate result code is transmitted at the point during connect negotiation at which
the TA has determined which speed and quality of service will be used, before any error control or data
compression reports are transmitted, and before any final result code (e.g. CONNECT) is transmitted.
Parameter
AT+CR Service Reporting Control
Test Command
AT+CR=?
Response
+CR: (list of supported <mode>s)
OK
Read Command
AT+CR?
Response
+CR: <mode>
OK
Write Command
AT+CR=[<mode>]
Response
TA controls whether or not intermediate result code +CR:
<serv> is returned from the TA to the TE when a call is being
set up.
OK
Maximum Response Time
300ms
Reference
3GPP TS 27.007
<mode> 0 Disable
1 Enable

Quectel EC25 Specifications

General

Category	LTE Module
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
GSM	850/900/1800/1900 MHz
Data rates	LTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Form Factor	LCC
Storage Temperature	-45°C to +90°C
SIM Interface	1.8V/3.0V
Antenna Interface	Main, Diversity, GNSS
LTE FDD	B1/B3/B5/B7/B8/B20
Interfaces	USB 2.0, UART, PCM, GPIO
Operating Voltage	3.3V - 4.3V
Protocols	TCP/IP, UDP, FTP, HTTP, HTTPS
Certifications	CE, FCC, PTCRB, GCF, RCM, IC