ENQ

/enkw/ , /enk/ [from the ASCII mnemonic ENQuire for 0000101] An on-line
convention for querying someone's availability. After opening a talk mode
connection to someone apparently in heavy hack mode, one might type SYN SYN
ENQ? (the SYNs representing notional synchronization bytes), and expect a
return of ACK or NAK depending on whether or not the person felt
interruptible. Compare ping , finger , and the usage of FOO? listed under
talk mode.

