Table Of Contents - Huawei EM770W At Command Interface Specification

Contents
Author..................................................................................................................................................... 3
Summary ................................................................................................................................................ 3
History .................................................................................................................................................... 5
1 Scope .............................................................................................................................22
1.1 Terminal Display ............................................................................................................................. 22
1.1.1 Interface Overview................................................................................................................. 22
1.2 Interface Design Principles ............................................................................................................ 23
1.3 Interface Change Principles ........................................................................................................... 24
2 Interface Introduction ...................................................................................................25
3 Query of Basic Information and Description of Set Interface ...................................26
3.1 Terminal error report command +CMEE ........................................................................................ 26
3.1.1 Command Syntax .................................................................................................................. 26
3.1.2 Description............................................................................................................................. 26
3.1.3 Defined Values ...................................................................................................................... 26
3.2 Echo command E ........................................................................................................................... 27
3.2.1 Command Syntax .................................................................................................................. 27
3.2.2 Description............................................................................................................................. 27
3.2.3 Defined Values ...................................................................................................................... 27
3.3 Command line carriage return character S3 .................................................................................. 27
3.3.1 Command Syntax .................................................................................................................. 27
3.3.2 Description............................................................................................................................. 27
3.3.3 Defined Values ...................................................................................................................... 27
3.4 Response format character S4 ...................................................................................................... 28
3.4.1 Command Syntax .................................................................................................................. 28
3.4.2 Description............................................................................................................................. 28
3.4.3 Defined Values ...................................................................................................................... 28
3.5 ME response format command V................................................................................................... 28
3.5.1 Command Syntax .................................................................................................................. 28
3.5.2 Description............................................................................................................................. 28
3.5.3 Defined Values ...................................................................................................................... 29
3.6 Backspace character S5 ................................................................................................................ 29
3.6.1 Command Syntax .................................................................................................................. 29
3.6.2 Description............................................................................................................................. 29
3.6.3 Defined Values ...................................................................................................................... 29
3.7 RSSI query function command +CSQ ........................................................................................... 29
3.7.1 Command Syntax .................................................................................................................. 29
3.7.2 Description............................................................................................................................. 30
3.7.3 Defined Values ...................................................................................................................... 30
3.8 RSSI level query function command + CSQLVL............................................................................ 30
Issue 18 (2009-06-22) Commercial in Confidence
HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
Page 7 of 169