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S-Registers
AT command set result codes
5.375 x 8.375 ver 2.4.0
AT command set result codes
The following table shows the result codes:
Command Set Result Codes Table
Result Code Numeric Description
OK 0 Command executed
CONNECT 1 Modem connected to line
RING 2 A ring signal has been
detected
NO CARRIER 3 Modem lost carrier signal, or
does not detect carrier signal,
or does not detect answer
tone
ERROR 4 Invalid command
CONNECT 1200 EC
*
5 Connection at 1200 bps
NO DIAL TONE 6 No dial tone detected
BUSY 7 Busy signal detected
CONNECT 2400 EC
*
10 Connection at 2400 bps
CONNECT 4800 EC
*
11 Connection at 4800 bps
* EC appears only when the Extended Result Codes
configuration option is enabled. EC is replaced by one of the
following symbols, depending upon the error control method
used:
V.44 - V.44 data compression with V.42 error control
V.42bis - V.42 error control and V.42bis data compression
V.42 - V.42 error control only
MNP 5 - MNP class 4 error control and MNP class 5 data
compression
MNP 4 - MNP class 4 error control only
NoEC - No error control protocol