| mtu | uint32 | 0 | If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple frames. | 
| number | string |  | The number to dial to establish the connection to the CDMA-based mobile broadband network, if any.  If not specified, the default number (#777) is used when required. | 
| password | string |  | The password used to authenticate with the network, if required.  Many providers do not require a password, or accept any password.  But if a password is required, it is specified here. | 
| password-flags | NMSettingSecretFlags (uint32) | 0 | Flags indicating how to handle the "password" property. | 
| username | string |  | The username used to authenticate with the network, if required.  Many providers do not require a username, or accept any username.  But if a username is required, it is specified here. |