The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2026
Filed:
Jan. 27, 2023
Hewlett Packard Enterprise Development Lp, Spring, TX (US);
John Ayers, Omaha, NE (US);
Tiffany Moore, Omaha, NE (US);
Gary Alan Blatch, Hampshire, GB;
Mathew Mathew Kaippallimalil, Plano, TX (US);
Matthew A. Johnson, Omaha, NE (US);
Carlos Alberto Galamba Galvão, Sobreda, PT;
Hewlett Packard Enterprise Development LP, Spring, TX (US);
Abstract
A method for applying per-International Mobile Subscriber Identification (IMSI) Access Point Name (APN) Operator Identifier (OI) replacement for Multiple IMSI Multiple Mobile Subscriber Integrated Service Digital Network (MSISDN) subscribers comprises receiving, at a home subscriber server of a cellular network, an identification of a currently active IMSI for a cellular device. The cellular device is associated with a cellular service subscriber having multiple IMSIs and multiple MSISDNs, the multiple IMSIs comprise a primary IMSI and one or more secondary IMSIs, and each of the IMSIs has an associated roaming COS that includes a roaming restriction policy that allows or suppresses Voice Over LTE (VOLTE). In response to the currently active IMSI for the cellular device being a secondary IMSI, the method comprises applying the roaming restriction policy specified in the roaming COS of the secondary IMSI regardless of the roaming COS of the primary IMSI.