D-6 User’s Manual
S-registers
AT command set result codes
The following table shows the result codes.

The result code summary

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*15 Connection at 1200 bps
NO DIAL TONE 6 No dial tone detected
BUSY 7 Busy signal detected
NO ANSWER 8 No quiet answer
CONNECT 2400 EC*110 Connection at 2400 bps
CONNECT 4800 EC*111 Connection at 4800 bps
CONNECT 9600 EC*112 Connection at 9600 bps
CONNECT 14400 EC*113 Connection at 14400 bps
CONNECT 19200 EC*114 Connection at 19200 bps
CONNECT 7200 EC*124 Connection at 7200 bps
CONNECT 12000 EC*125 Connection at 12000 bps
CONNECT 16800 EC*186 Connection at 16800 bps
CONNECT 300 EC*140 Connection at 300 bps
CONNECT 21600 EC*155 Connection at 21600 bps
CONNECT 24000 EC*156 Connection at 24000 bps
CONNECT 26400 EC*157 Connection at 26400 bps
CONNECT 28800 EC*158 Connection at 28800 bps
CONNECT 31200 EC*159 Connection at 31200 bps