Interface Introduction - Huawei EM770W At Command Interface Specification

HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
2

Interface Introduction

All interfaces herein refer to the interfaces between TE and MS, and are used for
guiding the implementation of the function requirements. The interface covers voice
call, short message receiving and sending, data traffic flow, phone book statistics,
supplementary service, and MS network system information setting.
For the commands sent from TE to MS, see also the detailed description in Appendix
16.1. Note that in the returned results of the TEST command, "," and "-" are different.
For example, the returned result of "+CMGD=?" is: +CMGD: (1,5),(0-4), which means
that the first parameter value may be 1 or 5, and the second parameter value may
range from 0 to 4.
Issue 18 (2009-06-22) Commercial in Confidence Page 25 of 169