Move clients from site A to site B

Hello,

SeveralDP clients shouldmove fromsite Ato siteB. So they will change Cell Manager (CMa to CMb).
On site A : CMa is DP 7.01 on Windows 2008 R2 - CMa is MA

On site B : CMb is DP 7.01 on Windows 2008 R2 - MA is another server.

What shouldI do ?
1.uninstall DPclients from theCMa thenre-install from theCMb ?
2.another possiblesolution ?

I willalso change thesetting OB2PORTRANGESPEC in theomnircfile for eachclient becausetheport rangeis notthe same.

Thanks for your help.

Stephane