$ sudo apt-get remove rtpproxy 

Uninstall rtpproxy including dependent package

If you would like to remove rtpproxy and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove rtpproxy 

Use Purging rtpproxy

If you use with purge options to rtpproxy package all the configuration and dependent packages will be removed.

$ sudo apt-get purge rtpproxy 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove rtpproxy 

See Also,