Settings 
*Closed User Group (Menu 9.3.7)
Closed user group is a network service that specifies the group of people whom you can call and who can call you. For more information, contact your network operator or service provider. If a group index is specified, it is used for all outgoing calls. If no group index is specified, the network will use the preferential index (a specific index that is stored in the network).
]Preset: Setting the selected CUG Index.
]On: Activating and editing the CUG Index.
]Off: Deleting the selected CUG.
Send DTMF (Menu 9.3.8)
You can send the DTMF (dual tone
This option is helpful for entering a password or account number when you call an automated system, like a banking service.
*: Shown only if supported by SIM card | 77 |
