Hi Anto,
what is the ITS Mobile service that you are calling?
What are the logon settings of this service in SICF?
Do these RF devices have barcode scanning capabilitys?
The following notes might be of interest:
1980475 ITSMobile - Configuration settings regarding Logon and Logoff
1947241 Setting secure session restriction for a specific ICF service
735612 Deleting the SAP logon ticket for ITS applications
Regards,
Oisin