After made some reaserch in wiki this was steps who as worked for me:
- new server registration
- new domino install with same version of previos Domino Traveler server
- copy of data/traveler/ntdsdb and data/LotusTraveler.nsf from old server to new server
- same Traveler version install in new Server
- update of Domino and Traveler to newest release
The server was published with alias name using a Reverse proxy so after we have changed back end server to new one the mobile client (Android and iOS) has started to work through new server.
Here you could find a Wiki about some possible other scenario