Control-O/SMS Commands

Control‑O provides means for the operator to start and stop the SMS interface using the Modify operator command.

Usually, there is no need to intervene with the default processing taken by Control‑O. The following operator commands are available:

The STARTSMS command instructs a Control‑O subsystem to restart the SMS interface. This includes a possible initialization of the interface (if it has not yet been initialized by another subsystem), and/or registration of the current subsystem in the SMS interface. If the STARTSMS command is issued against a subsystem that is already registered with the SMS interface, the following message is issued:

The STOPSMS command instructs a Control‑O subsystem to deactivate the SMS interface. This includes unregistration of the current subsystem from the SMS interface, and a possible removal of the SMS interface from common storage, if no other subsystems use it. When issuing the STOPSMS command against a subsystem that is not registered with the SMS interface, the following message is issued:

When issuing the STOPSMS command when no SMS interface is present, the following message is issued:

The STOPSMS,FORCE command instructs Control‑O to remove the SMS interface from common storage, regardless of any registered subsystems.

Control‑O also provides a started procedure named CTOSMDSC that can be started from the console using the START command. The CTOSMDSC procedure acts like a STOPSMS,FORCE command, and removes the SMS interface regardless of any registered subsystems. The STOPSMS,FORCE command and the CTOSMDSC procedure must be used only in case of emergency.