This paper proposes the development of SMS interface
application that refers to a particular ES' knowledge base,
which is represented in a database system in the previous work
[2]. This service development is based on application
interaction concept that employs question and answer (as
request-response mechanism in client-server system) in an ES,
which refers to a particular knowledge base. The SMS
application software will be developed for handling message
processing and replaying user's request automatically.