LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 2 / 231
About the Document
History
Revision Date
Author
Description
1.0
2016-05-30
James CAI/
Bonnie ZHAO
Initial
1.1
2017-01-18
Ivan ZHANG/
Sophie ZHU
1. Added the following AT commands:
+QRIR/+QQIQLTS/+QSPN/
+QHUP/+QEEC/+QMIC/+QRXGAIN/
+QIIC/+QADC
2. Added AT+QCFG commands shown as below:
"urc/ri/ring"/"urc/ri/smsincoming"/"urc/ri/other"/"risig
naltype"/"urc/delay"/"urc/cache"
3. Updated the description for <Act> parameter in
AT+COPS command: added the value 100 which
indicates CDMA network
1.2
2017-11-14
Jessica GENG
1. Added commands AT+QTONEDET, AT+QLDTMF,
AT+QLTONE and AT+Q
CFG=“tone/incoming”
2. Updated the description of parameter <ci> in
commands
AT+CREG,
AT+CGREG
and
AT+CEREG
3. Deleted command AT+QCFG="tdscsq" and the
description
of
+QURCCFG?
in
command
AT+QURCCFG
4. Updated
the
description
of
commands
AT+QUCCFG, AT+CTZU, AT+QDAI, AT+QEEC,
AT+QIIC and AT+QCFG="band"
5. Updated the examples of commands AT+QIIC and
AT+COPS
6. Deleted some related information about CDMA
7. Updated the supported baud rates of command
AT+IPR
