tag:blogger.com,1999:blog-1834236085756782640.post4165167251660571271..comments2024-03-21T14:19:53.378+00:00Comments on The 3G4G Blog: Voice over WiFi (VoWiFi)Zahid Ghadialyhttp://www.blogger.com/profile/11618208626682295272noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-1834236085756782640.post-72299523035590231292015-09-16T06:38:16.913+01:002015-09-16T06:38:16.913+01:00For VoWifi , IMS REGISTER should be sent over the ...For VoWifi , IMS REGISTER should be sent over the established IPsec tunnel.<br />How a transport mode protected IMS REGISTER will be sent through tunnel mode (IPsec).<br />Can anyone please help or provide a rfc reference.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1834236085756782640.post-53150586512812536332015-03-11T08:35:36.853+00:002015-03-11T08:35:36.853+00:00slide 13 mentions support for regulatory feature. ...slide 13 mentions support for regulatory feature. Could you expend a bit on this when a terminal has only wifi coverage. Thinking about 911 calls handling in T-Mobile network for instanceAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1834236085756782640.post-38679268443845541932014-12-17T21:48:11.660+00:002014-12-17T21:48:11.660+00:00For VoWiFi the IPSec tunnel is best established fo...For VoWiFi the IPSec tunnel is best established for voice specifically (hence it wouldn't carry other data traffic). Carriers that already have deployed a Carrier WiFi solution (with S2a support), maybe able to enhance its TWAG with ePDG functionality. <br />However, note that the requirements for mobile (internet) data and VoWiFi are quite different in terms of performance, throughput capacity and, latency and packet loss varaibility.Colinhttps://www.blogger.com/profile/02738378252256424525noreply@blogger.comtag:blogger.com,1999:blog-1834236085756782640.post-55740305099496350662014-07-18T09:37:24.566+01:002014-07-18T09:37:24.566+01:00How works VoWiFi for an operator which has impleme...How works VoWiFi for an operator which has implemented S2a? The Handset is authenticated (EAP-SIM) and its packets are already routed in the P-Gw. In this case an additional IPSec tunnel is not required. But I don't think that the Handset is able to detect that he is connected to the P-Gw over S2a. In case of VoWifi, the handset will still initiate the IPSec tunnel and the operator has to enhance its TWAG with an IPSec Gw. Is that correct?viande_de_chatnoreply@blogger.com