Apple Inc.

Bhanu Prasad Pamidi

Ajoy K Singh

Vijay Gadde

Sharad Garg

Vijendrakumar K Ashiwal

Rohit Thareja

Abhishek Walia

Sweta B Desai

Apparatuses, systems, and methods for enhancement of Wi-Fi calling for DSDS user equipment devices (UEs). The UE may register a first connection supported by a first SIM with IMS for VoWiFi based on a determination to prefer VoWiFi for the first SIM. The first SIM may be associated with a first subscription to a first RAN. The UE may include a second SIM that may be associated with a second subscription to a second RAN. The UE may register a second connection associated with the second SIM with the IMS for VoWiFi and/or VoLTE and initiate/receive, via the first connection supported by the first SIM, a VoWiFi call. A recommendation to handover the VoWiFi call from Wi-Fi to cellular data may be received and, based, at least in part, on the recommendation, the UE may register a second connection associated with the second SIM for IWLAN over cellular data.

DSDS Wi-Fi calling enhancements

Growing community of inventors

San Jose, CA, United States of America

Bhanu Prasad Pamidi