Courtesy Acknowledgments

Personal Communications and Communications Server keep a record of requests received from the host in order to correlate any response sent by the application with the appropriate request.When the application sends a response, the Personal Communications programs correlate this with the data from the original request, and can then free the storage associated with it.

If the host specifies exception response only (a negative response may be sent, but a positive response should not be sent), Personal Communications must still keep a record of the request in case the application subsequently sends a negative response. If the application does not send a response, the storage associated with this request cannot be freed.

Because of this, Personal Communications enable the LUA application to issue a positive response to an exception-response-only request from the host (this is known as a courtesy acknowledgment). The response is not sent to the host, but is used by Personal Communications to clear the storage associated with the request.