How to install Lotus Notes to my iPhone

I have a question , I will soon obtain an iPhone using Verizon will our administrator need to install the software for Lotus Notes Traveler on our server previously to me installing Traveler Companion? I was informed I need to use Traveler to be able to push contacts, calendar and e-mails to an iPhone. My administrator is unfamiliar with the Iphone, so I informed my admin to do this. Is this correct way? Also is there any other possible way to do this?
