RECEIVE CHAR
RECEIVE CHAR timeout
Receives a character of text on a channel. Specify a timeout in milliseconds as the maximum amount of time to wait for input, or set to 0 to wait infinitely. Note that most channels do not support the reception of text.
Return values:
-1 (hangup)-
Failure or hangup
char (timeout)-
Timeout
value-
ASCII value of character, in decimal