Ok Brian. I have tried with razorsql and seeing below. I couldn't telnet into port 2638. My question now is, sem5 database will allow remote connection? if so any configuration required in server side.
ERROR: An error occurred while trying to make a connection to the
database:
JDBC URL:
jdbc:sybase:Tds:<hostname>:2638?ServiceName=sem5
JZ006: Caught IOException: java.net.ConnectException: Connection
refused: connect