Not all VPNs are the same, and some old routers struggle to handle multiple VPNs due to limited NAT support.

Hi,

Have you tried disabling mobile broadband so that all you use is Wifi? That is what I would do in your situation....

HTH,

That could well be the answer
Many thanks

Not a lot of use, there should be something telling you what port the suresignal is trying to connect on and the resultant incoming response - something like this

10.100.10.1 port UDP 56 Reject

I've not used a Billion in years and can't remember the much about them.

WiFi calling drains battery due to the constant VPN tunnel. Especially on iPhone.

I personally lose about 1.5 hours of usable time with it on vs off in 1 bar locations.

Edited by ukhardy07 (Wed 10-Jul-19 22:38:29)

Hi

Glad I don't have an iPhone then

I can see my phone pinging the VPN every 20 seconds in the router diagnostics as a keep alive, but this task is offloaded to the network/Wi-Fi chip and doesn't drain the phone, i.e. it doesn't wake up the main CPU to do this task. This is with a Pixel 2 XL.

I've gone all day with less than a few percent battery power lost with it on Wi-Fi calling if I've not used the phone for anything. If working from home all week, where often I don't need my phone as on the PC, I can go 5 or 6 days between charges with Wi-Fi calling on.

Maybe its the Wi-Fi point you are using that doesn't support power saving, that can easily cause a big power drain as the Wi-Fi is constantly powered up and not allowed to disconnect and sleep between data exchanges.

Regards

Phil

On an iPhone you have permanent CPU usage when it�s enabled, it�s a pain.

Not sure if it's useful to you, but Vodafone also released an Alexa skill to link your Vodafone account to an Amazon Echo and use it for making and receiving calls. All the traffic goes over your broadband connection, and it doesn't cost anything to enable (calls are metered the same as if you'd made them with your phone):

https://www.vodafone.co.uk/mobile/OneNumber/Amazon

And the Echo Dot is half-price right now at £24.99