A question/problem about oracle "tns listener" and "enterprise manager"

hi,
I have a problem about the Oracle related components. I'm not able to find any answer yet, and waiting for your responses...

Here is the configuration of my system:

  • an IBM P550 machine,
  • an AIX 5.3 running on it and
  • an oracle database, already installed on it.

The problem (or question) is:
Oracle tns listener, "CT_LISTENER", and the enterprise manager (EM) of the instance, which is uniq instance and called "CALLTAKER", does not start at the startup of the system. So, I need to start the tnslistener and the EM at every power-on with an ssh connection.

Is there any way of setting some parameters or executing some commands to start the tns listener and the EM automaticaly at the startup?

thank you very much for your vauable responses,
talip.

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