AT Command datasheet EM770 Huawei WCDMA wireless module

Model Number: EM770

HUAWEI UMTS Datacard/Modem AT Command

Interface Specification

Keywords: UMTS, Datacard, Modem, PCMCIA card, WCDMA, GPRS, GSM
Abstract: This Document describes the AT command-based communication interface between TE
and MS of Huawei UMTS Datacard/Modem. The interface can implement the functions
such as voice call, SMS, telephone service, supplementary service, and network setting.

List of abbreviations:
Abbreviations Full spelling
PCMCIA Personal Computer Memory Card International Association
TE Terminal Equipment
MS Mobile Station
SM Short message
RSSI Receive signal strength indicator
BER Bit error rate
PLMN Public land mobile network
RPLMN Registered PLMN
URC Unsolicited result code
DCS Data coding scheme
DCE Data Circuit Equipment
DTE Data Terminal Equipment
CLIP Call Line Identifier presentation
PDP Packet Data Protocol
SCA Service Center Address

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