Library /sys$common/syshlp/tcpip$telnet_help.hlb SEND, GA  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    SEND GA (Go Ahead) signals the remote host that your local system
    is ready.

    Some applications require GA commands in either one or both
    directions. (Usually, Go Ahead is suppressed so sending a GA
    has no effect.)

    DCL-Style Format

      SEND GA

    UNIX Style Format

      send ga