Inventor
ARENDS JOEL
US27 patents
Patents
27 patentsUS11659389B1May 23, 2023
Architecture for providing cellular roaming support
T MOBILE USA INC6 citations84
US11700290B1Jul 11, 2023
Silent retry in a legacy system
T MOBILE USA INC2 citations73
US11445357B1Sep 13, 2022
Call routing while roaming on a 5G wireless telecommunication network
T MOBILE USA INC2 citations71
US11297494B2Apr 5, 2022
Secure rich communication services multicast system
T MOBILE USA INC4 citations71
US11128485B2Sep 21, 2021
Rich communication services multicast system
T MOBILE USA INC4 citations71
US11729656B2Aug 15, 2023
P-CSCF registration and discovery mechanism
T MOBILE USA INC2 citations69
US12532384B2Jan 20, 2026
Device information determination for anonymous calls
T MOBILE USA INC1 citations63
US12513576B2Dec 30, 2025
System for determining radio access technology type
T MOBILE USA INC0 citations61
US12317075B2May 27, 2025
Architecture for providing cellular roaming support
T MOBILE USA INC0 citations61
US11595872B1Feb 28, 2023
Selection of rats for handovers from 4G
T MOBILE USA INC0 citations61
US12581281B2Mar 17, 2026
Service-based architecture for internet protocol multimedia subsystem
T MOBILE USA INC0 citations60
US12356501B2Jul 8, 2025
Call routing while roaming on a 5G wireless telecommunication network
T MOBILE USA INC0 citations60
US12177659B2Dec 24, 2024
Secure rich communication services multicast system
T MOBILE USA INC0 citations60
US12028181B2Jul 2, 2024
Rich communication services multicast system
T MOBILE USA INC0 citations60
US11943836B1Mar 26, 2024
Service-based architecture for internet protocol multimedia subsystem
T MOBILE USA INC0 citations60
US11751044B2Sep 5, 2023
Call routing while roaming on a 5G wireless telecommunication network
T MOBILE USA INC0 citations60
US11665011B2May 30, 2023
Rich communication services multicast system
T MOBILE USA INC0 citations60
US11665537B2May 30, 2023
Secure rich communication services multicast system
T MOBILE USA INC0 citations60
US12490137B2Dec 2, 2025
P-CSCF registration and discovery mechanism
T MOBILE USA INC0 citations59
US11206291B2Dec 21, 2021
Session control logic with internet protocol (IP)-based routing
T MOBILE USA INC0 citations59
US12192251B2Jan 7, 2025
Proxy-call session control function (P-CSCF)
T MOBILE USA INC0 citations51
US11864265B2Jan 2, 2024
Proxy-call session control function (P-CSCF) restoration
T MOBILE USA INC0 citations51
US11632405B2Apr 18, 2023
Proxy-call session control function (P-CSCF) restoration
T MOBILE USA INC0 citations51
US11671818B1Jun 6, 2023
Reliable local breakout for roaming devices
T MOBILE USA INC0 citations50
US11159581B2Oct 26, 2021
Dynamic session initiation protocol peering configuration
T MOBILE USA INC0 citations49
US10757144B2Aug 25, 2020
Session control logic with internet protocol (IP)-based routing
T MOBILE USA INC0 citations49
US12021905B2Jun 25, 2024
Reducing IMS network congestion when a node in the IMS network becomes unavailable
T MOBILE USA INC0 citations47