In command mode your modem can send responses called result codes to your computer. Result codes are used by communications programs and can also appear on your monitor.
| Terse | Verbose | Description | |
|---|---|---|---|
| 0 | OK | Command executed | |
| 1 | CONNECT | Modem connected to line | |
| 2 | RING | Ring signal detected | |
| 3 | NO CARRIER | Carrier signal lost or not detected | |
| 4 | ERROR | Invalid command | |
| 5 | * | CONNECT 1200 | Connected at 1200 bps |
| 6 | NO DIALTONE | No dial tone detected | |
| 7 | BUSY | Busy signal detected | |
| 8 | NO ANSWER | No answer at remote end | |
| 10 | * | CONNECT 2400 | Connected at 2400 bps |
| 11 | * | CONNECT 4800 | Connected at 4800 bps |
| 12 | * | CONNECT 9600 | Connected at 9600 bps |
| 13 | * | CONNECT 14400 | Connected at 14400 bps |
| 14 | * | CONNECT 19200 | Connected at 19200 bps |
| 24 | * | CONNECT 7200 | Connected at 7200 bps |
| 25 | * | CONNECT 12000 | Connected at 12000 bps |
| 26 | * | CONNECT 16800 | Connected at 16800 bps |
| 40 | * | CONNECT 300 | Connected at 300 bps |
| 55 | * | CONNECT 21600 | Connected at 21600 bps |
| 56 | * | CONNECT 24000 | Connected at 24000 bps |
| 57 | * | CONNECT 26400 | Connected at 26400 bps |
| 58 | * | CONNECT 28800 | Connected at 28800 bps |
| 59 | * | CONNECT 31200 | Connected at 31200 bps |
| 60 | * | CONNECT 33600 | Connected at 33600 bps |
| 70 | * | CONNECT 32000 | Connected at 32000 bps, K56flex rate |
| 71 | * | CONNECT 34000 | Connected at 34000 bps, K56flex rate |
| 72 | * | CONNECT 36000 | Connected at 36000 bps, K56flex rate |
| 73 | * | CONNECT 38000 | Connected at 38000 bps, K56flex rate |
| 74 | * | CONNECT 40000 | Connected at 40000 bps, K56flex rate |
| 75 | * | CONNECT 42000 | Connected at 42000 bps, K56flex rate |
| 76 | * | CONNECT 44000 | Connected at 44000 bps, K56flex rate |
| 77 | * | CONNECT 46000 | Connected at 46000 bps, K56flex rate |
| 78 | * | CONNECT 48000 | Connected at 48000 bps, K56flex rate |
| 79 | * | CONNECT 50000 | Connected at 50000 bps, K56flex rate |
| 80 | * | CONNECT 52000 | Connected at 52000 bps, K56flex rate |
| 81 | * | CONNECT 54000 | Connected at 54000 bps, K56flex rate |
| 82 | * | CONNECT 56000 | Connected at 56000 bps, K56flex rate |
| 88 | DELAYED | Delay is in effect for the dialed number | |
| 89 | BLACKLISTED | Dialed number is blacklisted | |
| 90 | BLACKLIST FULL | Blacklist is full | |
| 100 | * | CONNECT 28000 | Connected at 28000 bps, V.90 rate |
| 101 | * | CONNECT 29333 | Connected at 29333 bps, V.90 rate |
| 102 | * | CONNECT 30666 | Connected at 30666 bps, V.90 rate |
| 103 | * | CONNECT 33333 | Connected at 33333 bps, V.90 rate |
| 104 | * | CONNECT 34666 | Connected at 34666 bps, V.90 rate |
| 105 | * | CONNECT 37333 | Connected at 37333 bps, V.90 rate |
| 106 | * | CONNECT 38666 | Connected at 38666 bps, V.90 rate |
| 107 | * | CONNECT 41333 | Connected at 41333 bps, V.90 rate |
| 108 | * | CONNECT 42666 | Connected at 42666 bps, V.90 rate |
| 109 | * | CONNECT 45333 | Connected at 45333 bps, V.90 rate |
| 110 | * | CONNECT 46666 | Connected at 46666 bps, V.90 rate |
| 111 | * | CONNECT 49333 | Connected at 49333 bps, V.90 rate |
| 112 | * | CONNECT 50666 | Connected at 50666 bps, V.90 rate |
| 113 | * | CONNECT 53333 | Connected at 53333 bps, V.90 rate |
| 114 | * | CONNECT 54666 | Connected at 54666 bps, V.90 rate |
* EC is added to these result codes when the extended result codes option is enabled. EC is replaced by one of the following codes, depending on the type of error control connection:
V42bis —V.42 error control (LAP-M) and V.42bis data compression
V42 —V.42 error control (LAP-M) only
MNP5 —MNP 4 error control and MNP 5 data compression
MNP4 —MNP 4 error control only
NoEC —No error control protocol.