Control of mobile telecommunication devices

A method for operating a mobile telecommunications device connected to a first mobile telecommunications network having a network identifier that identifies the first mobile telecommunication network, the method comprising:

• determining whether the mobile telecommunications device crosses from a first designated service area of the first mobile telecommunications network into a second designated service area of a second mobile telecommunications network;
• if the mobile telecommunications device crosses from the first designated service area to the second designated service area, scanning, through the mobile telecommunications device, for mobile telecommunications networks discoverable to the mobile telecommunications device, wherein each discoverable mobile telecommunications network is associated with a network identifier which identifies that discoverable mobile telecommunications network;
• and
• offering to a user of the mobile telecommunications device to manually connect the mobile telecommunications device to discoverable mobile telecommunications networks in order of priority on a prioritized roaming list associated with the mobile telecommunications device but not having the network identifier that identifies the first mobile telecommunications network.

A mobile telecommunications system comprising:

• a mobile telecommunications device;
• and
• one or more controllers collectively programmed with the following instructions:
• if the mobile telecommunications device is connected to a mobile telecommunications network having a country code identifying a first country, determine whether the mobile telecommunications device crosses from the first country into a second country;
• if the mobile telecommunications device crosses from the first country into the second country, scan, through the mobile telecommunications device, for mobile telecommunications networks discoverable to the mobile telecommunications device, wherein each discoverable mobile telecommunications network has a country code identifying a service country of that mobile telecommunications network;
• and
• offer to a user of the mobile telecommunications device to manually connect the mobile telecommunications device to discoverable mobile telecommunications networks in order of priority on a prioritized roaming list associated with the mobile telecommunications device and having a country code not identifying the first country.