April 15, 2008 G24-L AT Commands Reference Manual Acr & Abbr-1
Acronyms and Abbreviations
Abbreviation Full Name
A ACCH
AT Command Channel - Used for AT-commands, TCP/IP, Internal-GPRS session,
Voice-Call, and SMS applications
A AGC
Automatic Gain Control
A AOC
Advice of Charge
A APN
Access Point Name
A ASCII
A standard seven-bit code character set
A ATA
AT command for call answer
A ATD
AT command for call originating
A ATH
AT command for Hanging-up a call
A ATO
AT command to return to Data mode after temporarily exiting by ESC
B BM
Broadcast Message
C CA
A certificate authority or certification authority is an entity which issues digital certificates
for use by other parties. It is an example of a trusted third party.
C CB
Cell Broadcast
C CBM
Cell Broadcast Message
C CDS
Call Data Services (External-GPRS session, CSD session, FAX session)
C Certificate
A public key certificate (or identity certificate) is a certificate which uses a digital
signature to bind together a public key with an identity - information such as the name of a
person or an organization, their address, and so forth. The certificate can be used to verify
that a public key belongs to an individual.
C Cipher Suite
A set of cryptographic algorithms. A cipher suite specifies one algorithm for each of the
following tasks: Key exchange, Bulk encryption and Message authentication.
C CSD
Circuit-switched Data
C CSNS
Single Numbering Call Scheme
C CTS
Clear to Send
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