Call Parameters
  Standard Interface Enhanced Interface
Function Number Must be 103
Data String 1-character short session ID of the host presentation space
Length 17 is implied 20 is implied
PS Position NA

The calling data string can contain:
Byte Definition
Standard Enhanced
1 1 One of the following values:
  • A 1-character presentation space short name (PSID)
  • A blank or null indicating a function call for the current connection presentation space
2–4 Reserved
2-17 5–20 Reserved