For this issue, check in your init.ora file of that instance and confirm that you have enabled the MTS options. If not enable them and bounce the instance. Then bounce your listeners and then check lsnrctl services and confirm that MTS had started. Then in your tnsnames.ora file, create a new service name and after the connect option add SRVR= SHARED. Now if you connect to that service, you will be connecting to the MTS.
To the question of Pankajj, I have answered your other thread and check that out.
Sam
Thanx
Sam
Life is a journey, not a destination!