Can't receive calls, via cellular or wifi - missing important calls - iPhone

Forum|Forum|1 year ago
April 10, 2025
22 replies
834 views

I’ve been with ID for years and occasionally update my monthly plan.

Since last autumn wifi calling at home doesn’t appear to work at all for incoming calls and after disabling that almost no calls appear to get through (poor cell reception area usually 1 bar 4 or 5G, a few houses either way and there’s a better 1-2 bar 5G signal).

Although the iPhone doesn’t ring to inform of an incoming call, the missed call notification pops up seconds later.

This has now become serious as no calls from the NHS can get through, recently they redialled 16 times in 90 seconds to no avail. It’s a booking service that can only be delivered over the phone, frustratingly.

Yesterday I was standing in a park with good 5G service with a friend and they could not get through receiving a “user not available”.

I’ve followed the advice on the forum with regard to changes in Settings > Mobile Services save for the reference to APN which isn’t present in iOS 18?

Can you help?

Best answer by andewhite

I’ll try ordering one as you suggested.

QUICK THOUGHT - could I replace the SIM with an eSIM? Would avoid any physical issues in future?

Yes, you can replace a physical iD SIM with an iD eSIM.

andewhite

Platinum  Contributor

You might have a damaged / faulty iD SIM in your iPhone, @XMC10.

This community article might help.

Forum member (non-iD).

X

XMC10Author

Active Contributor

Hi thanks for the reply.

I doubt it’s actually damaged as ISTR for the last couple of contract changes ID have done it over the air (i.e. no physical SIM change) and this SIM hasn’t been ejected even once from receipt a couple of years ago until today when I “cleaned” it. There’s always a case on the iPhone.

I’ve had the iPhone checked out by Apple and they said “all OK the issue is with the Telco”.

Coincidentally, I didn’t mention this above as I didn’t think it relevant, but I now get less 5G when out and about than 2 years ago. Whether this is the telcos reducing service levels or a function of whatever is going on with the iPhone I’ve no idea. Not no 5G but mostly 4G in places where there was previously a good 5G service. Odd.

andewhite

Platinum  Contributor

Does the iD SIM behave the same way in a different phone, @XMC10?

Forum member (non-iD).

X

XMC10Author

Active Contributor

Unfortunately I don’t have access to another phone to test.

andewhite

Platinum  Contributor

A replacement iD SIM might fix these issues, @XMC10.

Forum member (non-iD).