| Member | Value | Description |
|---|---|---|
| telnetAbortOutput | 245 | The function AO. |
| telnetAreYouThere | 246 | The function AYT. |
| telnetBreak | 243 | Network Virtual Terminal (NVT) BRK. |
| telnetDataMark | 242 | The data stream portion of a Synch. |
| telnetDo | 253 | Ask the Telnet host to DO the specified option. |
| telnetDont | 254 | Ask the Telnet host to NOT DO the specified option. |
| telnetEraseCharacter | 247 | The function EC. |
| telnetEraseLine | 248 | The function EL. |
| telnetGoAhead | 249 | The GA Signal. |
| telnetIac | 255 | The Interpret as Command signal. |
| telnetInterruptProcess | 244 | The function IP. |
| telnetNoOperation | 241 | The Telnet client WILL agree to the specified option. |
| telnetSubOption | 250 | Indicates that what follows is sub-negotiation of the indicated option. |
| telnetSubOptionEnd | 240 | End of sub-negotiation parameters (not used by application) |
| telnetWill | 251 | The Telnet client WILL agree to the specified option. |
| telnetWont | 252 | The Telnet client WONT agree to the specified option. |