Patent ID: 11863599
Assignee: T-MOBILE INNOVATIONS LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of operating a wireless communication network to transfer user information from an inviting user to an invited user over Session Initiation Protocol (SIP), the method comprising:
a user server receiving the user information transferred by an inviting User Equipment (UE) that characterizes the inviting user for presentation to the invited user;
a Call Session Control Function (CSCF) receiving an originating SIP invite generated by the inviting UE for the invited user and forwarding the originating SIP invite to a Telephony Application Server (TAS);
the TAS receiving the originating SIP invite from the CSCF and responsively transferring an Application Programming Interface (API) call that comprises identifiers for the inviting user, the invited user, and a session type to the user server to obtain the user information for presentation to the invited user;
the user server receiving the API call, retrieving the user information based on the identifiers for the inviting user, the invited user, and the session type, and transferring a response to the TAS that indicates the user information from the inviting user for the invited user;
the TAS receiving the response, indicating the user information to the CSCF, and directing the CSCF to transfer a terminating SIP invite from the inviting user to an invited UE; and
the CSCF receiving the user information and transferring the terminating SIP invite for delivery to the invited UE that has the user information in a message header of the terminating SIP invite, wherein the invited UE receives one of the terminating SIP invite or a version of the terminating SIP invite and responsively presents the user information from the inviting user to the invited user.