主权项 |
1. A method comprising:
receiving, by a user device, identifications of multiple network identities associated with a service account, the multiple network identities including network identities associated with a plurality of different user devices; selecting, by the user device, a subset of the multiple network identities based on user preferences, the preferences indicating network identities for which a user wishes the user device to receive communications; and providing, by the user device, the selected subset in one or more headers of messages to a telecommunication network. |