On 31/07/2019 08:27, The Natural Philosopher wrote:
On 31/07/2019 08:16, Andy Burns wrote:
The Natural Philosopher wrote:

WiFi Calling will activate on phines that support it and mobile
networks that support it when
(a) there is an adequate wifi signal
(b) the mobile signal strength drops below a given level.

(c) When the SIM provisioning allows it

I did say "on phones that support it and mobile
Â*networks that support it when "

previously my phone was on Tesco (O2 mvno) and I couldn't even enable
wifi calling, now it's on Virgin (EE mvno) and I can enable it, but it
still won't work as virgin don't support it.

I forgot to say that AFAIK in the UK only EE/BT ID moble O2 Sky and
vodafone support it on plan, amd only 3 Mobile on PAYG and plan.

https://www.simsherpa.com/networks/b...obile-networks

has a lot more info



When the signal drops the phone will open UDP connections to ports
500 and 4500

Also IP protocol 50 (ESP, neither TCP or UDP) those are the same three
connections that femtocells use to create IPSEC tunnels back to the
provider.

It would be strange if they used different...




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You can get much farther with a kind word and a gun than you can with a
kind word alone.

Al Capone