Does*anyone know how to get rid of the Vodafone WiFi calling notification? It appears at the top of notification bar and also on my lock screen, when I have poor signal and it connects to WiFi calling mode. I can only mute it for 2 hours at a time. In the notification settings it comes under "IMS service" which is a system app that it is*greyed out so can't be switched off. I never had any notifications when WiFi*calling*was connected with O2 but I do since changing to the N20 and my new carrier Vodafone. I find this irritating.