I just switched from an EE sim as the signal is poor whereas the Virgin over O2 network is decent. Problem solved, but whereas previously if a second call was received there was an option to accept the new call and hold or end the first one, with Virgin the other call goes to voicemail without any obvious indication there was a call; being able to accept the new call is much better.
Keen to know if this ability is supported in any way with Virgin, and if so, how can this be enabled?
I tried again having setup a call with one phone and then calling from another, and had the message saying "sorry, but the person you called isn't available at the moment", and the invite to leave a voice message. So still the same problem with the latest iOS 15. I can't update to 16, but that shouldn't matter as the feature was working with a previous EE sim for many months and various earlier versions of the OS. Wondering though if the behaviour was different previously because I didn't have VM setup with EE, and voicemail is prioritised over being offered to accept a new call.
Ok, finally solved, and it's simply that the call waiting feature became disabled after the sim switch. I hadn't hit on any google results to indicate what feature would give the missing behaviour and no one suggested "have you checked that xyz feature" is turned on, but digging through phone settings i hit on it. Thanks for sticking with the issue.