Text message and call dropping issue on my iPhone, post iOS 18.3.1 update

Calls Don’t connect for me. Definitely an issue since 18.3.1 update. Tried aetrageser’s data and Wi-Fi calling solutions, however for me they didn’t work. I’ve got an SE 2020. The only thing that works for me is turning on the Speaker while dialing, then it connects. Haven’t tried turning off the speaker while talking.

This REALLY stinks though because it will make some of us have to toggle the Wifi on and off constantly. The WiFi being on is required if you use Carplay (at least my car). Mine is a 13 Pro Max and it's dropping calls constantly since the update.

If it was the software update, all the support forums would be flooded with posts.....but they're not.

Try iOS 18.3.1, if you have not already done so.

Yes I figured that out the other day. But it needs to be fixed ! I hope they resolve the issue real soon. Or android here I come.

This is 100% the fix. Thank you.

Same exact problem. Unfortunately, replacing my donated 13 Pro with a new phone is impossible due to financial constraints resulting from severe permanent disability. So Apple, PLEASE help!

Same issue. Random dropping since 18 update.

I never use wi-fi calling though. I have unlimited talk, text and data no need to. I leave mine on cellular, my wi-fi is connected but wi-to calls never. That being said. Mine has started acting better over the past day and a 1/2 so I’m hoping it’s fixed. My neighbor could not get his slider to open the phone, theres a lot of problems with this update. Hope everyone else has some luck like I did, just go away ..

Ever since I put this update into my iPhone 14 Pro Max this 18.3.1 update I have constant phone calls that fade in and out. I’m on a three-way call an all of a sudden it’s like I can’t hear other people talking then fades back in or I gotta hang up and recall everybody back there also happens on just individual phone calls as well.

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I’m on 18.3.1 and having same issues full service loses service goes to SOS mode satellite shows up and 10-15 seconds full service returns less minute it loses again and constantly cycles.

Happens on my Verizon and T-Mobile phones diagnostics test says eSIM error Vzw and t-mobile can’t seem to fix the issue. Mine seems to be tower related as not all the towers are doing it.

I am having the same issue! Worked with verizon- they check my line and my phone and they said all was perfect. Then called apple- they changed my sim card and said the phone was operating perfectly on their end. Still having dropped calls!

Update: once I was home with good WiFi connectivity, I turned WiFi and Bluetooth on & off several times. When out and about today, I tested sending a message from my iPhone and it was working again.

Hope this helps!