Read/Write SVN access:
Substutute USERNAME with your username:
svn checkout --username=USERNAME svn+ssh://USERNAME@svn.code.sf.net/p/phoobos/svn/trunk phoobos-svn
For example:
svn checkout --username=user1 svn+ssh://user1@svn.code.sf.net/p/phoobos/svn/trunk phoobos-svn