Netbackup 7.6.0.4 and pbx removal

Hi, 

I need to remove NBU from my Ubuntu server.

I saw this post but i wonder if there has none-manually\better way to do it.

also i didn't find how to remove the vxpbx_exchange service. How should i do it?

Thanks

edit:

I have an "install" script installation that installing the PBX and NBU Services - it is extracting the necessery packages from tar.gz files.