Inventor
ZAIFUDDIN SABUHI KIRAN
US11 patents
Patents
11 patentsUS11659389B1May 23, 2023
Architecture for providing cellular roaming support
T MOBILE USA INC6 citations84
US10117090B2Oct 30, 2018
Multiple device association with a single telephone number
T MOBILE USA INC8 citations83
US10015671B2Jul 3, 2018
Network service access control
T MOBILE USA INC6 citations83
US11277717B2Mar 15, 2022
Mobile terminating call retry logic for multiple radio access technology types
T MOBILE USA INC2 citations72
US11503453B2Nov 15, 2022
Virtual line registration system
T MOBILE USA INC2 citations65
US12317075B2May 27, 2025
Architecture for providing cellular roaming support
T MOBILE USA INC0 citations61
US12052297B2Jul 30, 2024
Self-healing and resilient IP multimedia subsystem core
T MOBILE USA INC0 citations61
US10334440B2Jun 25, 2019
Network service access control
T MOBILE USA INC1 citations61
US11818677B2Nov 14, 2023
Restoration of long-duration services
T MOBILE USA INC0 citations60
US12513508B2Dec 30, 2025
Virtual line registration system
T MOBILE USA INC0 citations54
US12581012B2Mar 17, 2026
Unique call progress tone invocation timer per client or access type
T MOBILE USA INC0 citations49