top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

Doubts on VoWiFi functionality .

+3 votes
250 views

As per my knowledge Voice calling over WiFi is mainly deployed using ePDG over untrusted Wi-Fi network.

  1. Is the same is also possible on carrier Wi-Fi network using TWAG (EoIP/GRE + S2a), without using ePDG ??
    If yes, please share any reference or deployment architecture.
  2. Can UE come up with IMS APN instead of default APN during initial-attach ?
  3. Does IPSEC tunnel is pre-requisite for VoWiFi functionality?

Any help, pointers will be appreciated.

posted Apr 29, 2016 by Sarjit Singh

Looking for an answer?  Promote on:
Facebook Share Button Twitter Share Button LinkedIn Share Button

Similar Questions
+3 votes
WiFI calling over trusted(TWAG/S2a) network.

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.

+1 vote
LTE: Which technology is the best among today's available options for LTE and Wifi aggregation ?

As far as I studied, I know following options that can be used for LTE and Wifi interworking:
1- LTE - U (LTE Unlicensed)
2. LAA (Licensed Assisted Access)
3. LWA (LTE wifi aggregation)
4. MPTCP (Multi path TCP)

Out of above options, there might be other options which I don't know. But out of above four which one is best and due to what reason operator will choose the best one ?

+1 vote
Voice over Wifi, is there any specification?

New York’s based Cablevision has launched a Voice over Wifi service, check the following

https://www.youtube.com/watch?v=EhBkhzvb6FA

Now the question is do we have any specification which talks about voice over WiFi and any other use case.

...