Roaming across different access mechanisms and network...
Roaming agreement application and database for carrying out...
Roaming and hand-off support for prepaid billing for...
Roaming arrangement
Roaming authorization system
Roaming authorization system
Roaming control method for digital mobile telephone
Roaming cordless telephone
Roaming gateway enabling location based services (LBS)...
Roaming gateway for support of advanced voice services while...
Roaming gateway for support of advanced voice services while...
Roaming in wireless networks with dynamic modification of...
Roaming indicators for multi-mode wireless communication...
Roaming interworking gateway for mobile telecommunications...
Roaming method
Roaming method and devices appropriate therefor
Roaming mobile communication system and method
Roaming service method and system in multi-zone private...
Roaming service method in a mobile broadcasting system, and...
Roaming service system for GSM service subscriber in CDMA...