IPHONE 4s call failed??!!!

hi have my 4s only 4 day it first started giving problem on the day in the shop they swapped the first sim as this was this could not find network(o2 ireland) the second sim could recieve text and internet but no call. after several calls to o2 in shop they addvised me to go home and connect to my i tunes and do a restore when home did this phone worked fine until monday then no calls all failers went back to shop Carphone warehouse there the phone worked perfect 30 calls no problem they rang o2 and they gave a no. for apple. apple said it was a hardware problem and to replace the phone. phone worked fine in shop and around town. but home again failed calls no text or web except wifi.but still have 4 bars been on to o2 and apple they say go to shop get sim replacement this after rebooting phone and reseting setting about 5 times. apple said do a restore again but every time i try to download the software it spends 40 mins downloading then say error server has timed out. i feel like i am going around in circles. went out to night for walk around block 5mins from my house i was able to recieve and make call starting to get very mad wish i never got i phone should have stayed with nokia.

I'm from Singapore .. Bougth iPhone 4s 32gb , 3 days before -since that day I can't even make one

Proper call.. Most of the time no service or can't make a call.

If some one call then the call divert to voice mail box..

Then I wanted to restore my phone but apple server 'time out '...

Now I'm thinking what's the purpose of having iPhone 4s???

If I go to get replacement then I'm scared that replacement set might have battery problem or same signal issue

So better throw the iPhone 4s ... No need to bother about all this nonsense :(

Just spoke to Tele2 a swedish telecom provider that I got my iPhone 4S 16gb from. I have had the same problems with dropped calls. Luckily my company had one iPhone 4S lying around and yesterday I tried this one and it works without any issues.

Well now to what Tele2 told me. According to them Apple has confirmed that there is a software issue on some phones, this will be solved with an update from Apple. I'm on a mailing list from Tele2 and I will get an email when this fix comes out. They couldn't say when, but said that they are working hard on this.

Same issue here in singapore. Using 32GB iPhone 4s with singtel. 50% call failed.. Call telco tech support and they say it's probably the sim card issue.. changed a new microsim and the issue still persist.. anyone has any solutions? Phone is useless if basic function like calling is not functioning..

I too am having the dropped calls and incoming calls going to voicemail when i have good signal with 3g etc. Can I say this has only cropped up in the past week and is, in my opinion, definitely an ios5 problem as my girlfriend has had an iphone 4 for a year with no problems whatsover until she changed to ios 5 and has the exact same problem as me. Tried all of the recommended fixes ie. resart from scratch as new fone etc. network provider (o2 uk) says everythings fine signalwise (theres a 3g mast abot 50 yds from my house) and sim works fine with adapter in an old sony ericsson. Both our fones now only get and receive about 1 in 5 calls made. weve been calling each other with landlines and allsorts. My guess is an update will fix it soon or you can take it to the apple store for a replacement but as ive said, this isn't in our experience just an iphone 4s problem.

iphone 4s and 4 running ios 5.0.1.

can i add i have since found that when i use my landline to call my iphone the call drops after 2 seconds when my wfi is on every time, when wifi is off its fine. ive tried this about 50 times with wifi on and off with the same result, anyone else finding this? trip to the apple store methinks

I've to try to call 2nd time in order to get the call connected. I'm in Australia with Telstra using iPhone 4s. Never had this problem before with my iPhone 4. I suspect it's the 5.01 update that screwed this..

hi everyone in relation to my first post on my i phone 4s i have since been on to apple and they have restored my phone there were problems with the download kept get errors on the restore download in i tunes apple said it is caused by the anti-virus software you need to be pause for about 1 hour to get a sucessful download anyway getting the phone after this i still could get or make calls from my house or send text but once i left my estate an went 2min up or down the road it work fine they suggested another replacement sim (no,3) but this time from a O2 store not carphone warehouse so i went down the village and got a new sim it work fine in village and as i was down home in cork last week it worked fine there as well. since i have been back this sim has work fine in my house and i can make and recieve text this seem to have solved most of my problems hopefully!!! i still have noticed some quirkes i sometime still make calls and get no sound but when turn on speaker i can here the phone ringing and if i turn off the speaker u can then here ringing in the headset this can happen anywhere the odd time but this is better the no calls at all this sounds like a software glick. You never know the software update i downloaded tonight might fix it Maybe! will let you know if it does.

I too am having "call failed" more than 50% of the time. Normally it happens after a couple of minutes. Yesterday it happened after 23 mins. Just now it happened immediately as I answered the phone and then lifted it to my face. I spoke to Vodafone about it. They said it was to do with being to low in the priority list of people using the antenna and that I should reboot the phone every time I was expecting a call to get to the top of the list. But using *#105# I can see that some of the call fails are soon after connecting to the transmitter. I have at least 3 bars on the phone all the time. I've tried using it while driving some distance, with a headset, holding it in my hand in exactly the same way that I would hold it to my face, without error. I haven't done that lots of times but it would seem to indicate that it's not to do with changing transmitters or variable signal quality or the way that my hand holds the phone. I've read about siri and wifi on here. They're still areas I need to look into. The siri thing is interesting as it does seem to be when I hold the phone to my face. But sometimes I can be pressing it to my face for a long time and the call will drop without me moving at all. This is a black 32 gig iphone 4S. The other day they sent me a replacement. I restored from a backup of the other one and put the same sim in. The problem is exactly the same. I use my left hand to hold the phone, but I've tried holding the phone very carefully and delicately and asymetrically and it doesn't seem to help. Prior to this I used a 3GS in the same way for a year with no problems. Can anyone help?

I've gone to great length and put lots of hours into this matter trying to figure out what's causing this problem. And as you can see in my earlier posts I've tried everything and have had extensive contact with my operator (Tele2) in this matter.

I finally caved in and returned my iPhone 4S to Tele2 and they sent it to Apple which in return sent me a new phone a week later with iOS 5.0 installed. And TADAAHH!, Everything worx like a charm.

Note, I have the same exakt microSIM, a new phone with supposedly same hardware but iOS 5.0 instead of 5.01 and making and receiving calls and messages now works like a charm.

This is my tip, return phone and get a new one with iOS 5.0 on. This saves you a lot of time and headache.

Conclusion It's not the choice of operator and not the microSIM that's causing this problems. It's either the hardware in the first iPhone 4S that was sent out to customers (like mine), the software, or a combination there of.

Arggh. It's just happened again. This time I had "raise to speak" set to off for siri and I didn't have a wifi connection. I had 3 bars on the phone. To be clear this is the "call failed" problem where "call failed is displayed on the screen" and the call is dropped. It's not about not being able to hear the other person or any other problem.

In summary I have tried:

1. Changing the handset (4S 32 gig).

2. reregistering to the telecom provider just before the call (Vodafone)

3. The drive is less than half full

4. Holding it very carefully

5. Using a headset (the problem doesn't occur here).

6. Disabling siri "raise to speak"

7. Not being in a wifi area

8. Being in a good Vodafone area.

I guess the next thing to try in downgrading the firmware. No idea how to do this. Surely getting a new phone can't be the way to do this.

I have exactly the same. iPhone 4S used in Belgium. When I call, I see the connection happened but don't hear anything. A second attempt typically works. I have the problem as well when using BT in my car!

Very annoying. Do you know if Apple is handling this?

@Sam94

I have the same phone andnetwork as you. Whilst Vodafone recently reported problems with their 3G mastin my area, this doesn't explain the problems I have with failed calls, droppedcalls, no service, no network, poor reception etc, I have had since I upgradedin October.

I have applied everytroubleshooting suggestion that Vodafone and Apple Care have devised, includingrestoring the phone and applying the new iOS5.1 upgrade. I have also removedall apps from my phone, which only showed an improvement in battery life. Ihave had my phone replaced/exchanged three times in the past week and theproblem persists w/out solution.

Now I am reading that Appleplan to launch the iPhone5 in March 2012, WTH???? (Idon't usually follow these rumours but the Telegraph is reporting its arrival)Why bother releasing this version, if you were planning to redesign the wholephone and release that version a mere, 5 MONTHS!!! later? I feel cheated and Iam really disappointed with Apple. Trying to fix a brand new phone has beenunnecessarily stressful.

My friends had all planned toupgrade to i4s but are reluctant to do so because of the problems I'm facingand now will probably just wait until March, which I wish I had done.

Oh, and another thing, why don’t we have the choice to turn off 3G???

Pull it together Apple or face a revolt!!

I am having this problem for almost a month now.

sometimes after the call is connected both parties cannot hear each other.

then second time when i call its normal.

some days this happnes with every call or almost all calls.

need HELP Urgently

I have this, too. My original iPhone 4s had no sound on calls about 30% of the time. I am on my 4th 4s now and the last 3 have had this dropping call issue. The last one dropped 95% of my calls!!! So I am using my iPhone 4 now. Waitin for a new batch or something to come in to my local apple store.

They keep replacing them no questions asked - without even having the problem duplicated in the store. So I was thinking maybe it is the hardware.

I have done full restores, swapped out SIM cards, reset network settings... 64GB Black 4s on AT&T.

(I will say that the apple and AT&T folks have been very nice, at least.)

Lisa