top button
Flag Notify
Site Registration

WiFI calling over trusted(TWAG/S2a) network.

+3 votes

As per my knowledge, WiFI calling is supported over untrusted(using ePDG/S2b) networks from Rel 10 onwards.
But I am not sure about WiFi over trusted(TWAG/S2a) networks and having few doubts.

  1. Is VoWiFI is supported over trusted(using TWAG or S2a) networks, if not then what are the limitation?
  2. Is LTE to WiFI handover supported over S2a interface(TWAG) ?

Any help, pointers will be appreciated.

posted Apr 27, 2016 by Sarjit Singh

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

Yes LTE to Wifi handover is supported over S2A interface
Kindly refer TS 23.402 page number 264.

Also Vowifi is possible on S2A but no idea about limitation

answer Apr 27, 2016 by anonymous
thanks a lot
Similar Questions
+3 votes

During the Handover from LTE to WiFi, how an UE is authenticated at WiFi network ?
Is there any difference in authentication procedure when UE is handed over to un-trusted or trusted WiFi network ?

0 votes

Can someone please explain handover procedure between LTE network and wifi network ?