Backup your K800i

Quoting from: http://groups.google.com/group/ka.comp.linux/browse_thread/thread/6723640947fea7f1

* welche bluetooth devices gibts in der Nähe:
  hcitool scan
* device information abrufen:
  obexftp -b 11:22:33:44:55:66 --uuid synch --get telecom/devinfo.txt
* Telefonbuch / phonebook sichern / restaurieren / löschen:
  obexftp -b 11:22:33:44:55:66 --uuid synch --get telecom/pb.vcf
  obexftp -b 11:22:33:44:55:66 --uuid synch --put pb.vcf
  obexftp -b 11:22:33:44:55:66 --uuid synch --delete telecom/pb.vcf
* Telefonbuch / calendar sichern:
  obexftp -b 11:22:33:44:55:66 --uuid synch --get telecom/cal.vcs