mod_rewrite question

Hi-

I am just starting to look at mod_rewrite to see if it will solve a problem.
We have some servlets and JSP that I don't have total control over.
I want to turn a url like this (i.e. this is in the customer's address bar
in the browser):

https://www.myurl.com/servlet/com.mediacom.test?action=10

Into:

https://www.myurl.com/servlet/com.phonemiser.test?action=10

The second URL is appropriate for all the internal processing. Basically I
don't want the customer to ever see phonemiser in the URL, yet all the
internal servlets are named phonemiser. I want to use Apache to filter and
modify both the inbound and the outbound URLs that are displayed to the
customer. This is a completely symmetric process, can mod_rewrite do this?

Thanks,

Matt