Calls cut out but do not "fail" and cannot be ended

Discussion in 'iPhone' started by cjbryce, May 16, 2011.

  1. cjbryce macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #1
    I wonder if anyone else experiences this fault?

    I have a recurring but intermittent fault in iPhone 4 (4.3.3). Call duration does not seem to be a factor, nor does power state of the battery, nor does calling party (incoming or outgoing are equally susceptible.

    • Call cuts out - neither party can hear anything
    • Call does not "fail" - no failed call triple beep
    • Call cannot be ended from the keypad - phone requires full power-off/on reboot Windoze style.

    Now, this used to happen on my iPhone 3GS too, but this is a brand new phone, with a brand new SIM, and was "built" as a new phone rather than a restore from backup.

    Any ideas (apart from getting shouty with O2)?
     
  2. NutsNGum macrumors 68030

    NutsNGum

    Joined:
    Jul 30, 2010
    Location:
    Glasgow, Scotland
    #2
    I never had this happen on my 3GS, but it happens almost routinely on the iPhone 4. Always dropping calls, dodgy keyboard, iffy response on buttons. You name it. I think I'll be off to HTC after this.
     
  3. johnfnwhiteside macrumors newbie

    Joined:
    Sep 23, 2010
    Location:
    Lennon, MI
    #3
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_8 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E401 Safari/6533.18.5)

    Get a Verizon iPhone. I've never had any problems on Verizon with dropped calls.
     
  4. Interstella5555 macrumors 603

    Interstella5555

    Joined:
    Jun 30, 2008
    #4
    I've never had a problem with dropped calls on AT&T even when using my voice and data at the same time. How does that work out for you?
     
  5. jredecop macrumors 6502a

    Joined:
    May 20, 2009
    #5
    Lol...wow....
     
  6. cjbryce thread starter macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #6
    Minor problem with that idea. Hint: my location.
     
  7. johnfnwhiteside macrumors newbie

    Joined:
    Sep 23, 2010
    Location:
    Lennon, MI
    #7
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_8 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E401 Safari/6533.18.5)

    I've toured the country several times and all I can say is Verizon consistantly out performs at&t in more locations. I think for me having having better service in more places heavily outweighs being able to use data and voice at the same time.
     
  8. cjbryce thread starter macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #8
    Update

    Well, it happened again this morning about 2 minutes into a call. I called O2 support and explained the issue and they came back with "it can't be the network, it must be the hardware, take it to Apple".

    Strange that since its happened across two iPhones and two SIM cards. However, I'll traipse off to an Apple store when I have the time available.

    In the meantime, any other ideas from here?
     
  9. cjbryce thread starter macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #9
    Update - the story so far.

    • Called O2 - no known issues, all well with my account and setup and all well with the towers I use the most.
    • Surveyed those I know on O2 and iPhone 4 in my office - they all have the same issue. Checked the internet and found a few similar stories
    • Called Apple - no known issues but try resetting the phone
    • Reset and rebuilt the phone as a new phone - issue remains
    • Called O2 - "please visit an O2 store and they will check the hardware"
    • Visited an O2 store - only Apple can check the hardware and it must be hardware as our network and carrier update is perfect. "But look at the evidence - 3Gs, iPhone 4, changed SIMs, rebuilt phone, colleagues have exactly the same fault. Commonality is iOS4.x.x and Carrier Update 10.0" says I. Nope, O2 say, it must be the hardware - go see Apple.
    • Genius bar appointment for tomorrow, where I expect to be given a new phone, which will then demonstrate the exact same issue.

    Looks like Vodafone might be getting me back - I can live without Visual Voicemail. Maybve even Orange/T-Mobile now that their networks can be combined here in the UK.
     
  10. johnfnwhiteside macrumors newbie

    Joined:
    Sep 23, 2010
    Location:
    Lennon, MI
    #10
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_8 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E401 Safari/6533.18.5)

    Deffinitely sounds like a service issue and not a hardware issue.
     
  11. VulchR macrumors 68020

    VulchR

    Joined:
    Jun 8, 2009
    Location:
    Scotland
    #11
    I have never had that with my 3GS on Orange. I do occasionally get dropped calls, but I am on the edge of the range of the local mobile phone mast.
     
  12. blevins321 macrumors 68030

    Joined:
    Dec 24, 2010
    Location:
    Winnipeg, MB
    #12
    This problem is due to an Apple software quirk. Basically, the phone is supposed to send a message to the tower (and vice versa) when the signal is starting to degrade to unsustainable levels. This prepares both sides for a potential drop. Apple it seems hasn't programmed the phone well enough to handle a sudden cutout. So the phone doesn't know what to do when the notification signal is unable to be received by either side of the call. This would be an incredibly easy fix. Too bad it doesn't happen often enough to be higher on the priority list.
     
  13. OpisthorcisX macrumors newbie

    Joined:
    Apr 6, 2011
    Location:
    København
    #13
    I've had that issue a couple of times (unable to end call), but seems restricted to when I am at home ie shockingly bad signal in my flat - have to stand near teh window to get a decent reception. This can be said for numerous different handsets on various providers. I'm on O2 also, and when it has occurred I have just reset the phone. Sadly don't have much option other than to remain with O2, partly due to the great call plan I have but also due to the shocking reception available on pretty much all networks here in Edinburgh. Outside of Edinburgh the phone works a treat.

    ....oh and don't bother getting shouty at O2 you will just get transferred to the RLS dept ie they hangup....it's what we all did when i worked there!!
     
  14. cjbryce, May 27, 2011
    Last edited: May 27, 2011

    cjbryce thread starter macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #14
    Update 3

    Yet another update.

    Went to see the Genius, who agreed it is not a h/w issue but ran daignostics on my phone anyway. No faults found. He offered me a new phone anyway on the grounds that "O2 can't say we haven't tried everything else"

    So far no drop outs, but so far very few calls made or received. Let's see what happens.
     
  15. cjbryce thread starter macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #15
    Interesting - but these dropouts occur when I have 4 bars of 3G signal and in any event the issue, although across two phone models, is relatively recent - since O2 Carrier 10, I think.

    I also thought there might be some correlation with incoming emails/texts, but I can't see a pattern there either.
     
  16. gusterfan macrumors newbie

    Joined:
    Mar 30, 2009
    #16
    oh it sounds like a hardware issue alright... THEIR hardware!!! :p
    hope it works out for you, cjbryce! best of luck dealing with the phone company
     
  17. sjinsjca macrumors 68000

    sjinsjca

    Joined:
    Oct 30, 2008
    #17
    What sort of earpiece do you use? I had problems with sporadic cutouts (not same symptoms as yours, but annoying as hell) with several iPhone 4s. After many shrieking calls to AT&T about their gawdawful network (and I gotta say, they stuck with me and tried many things), it dawned on me that the common thread was my wired headset. The issue only occurred when I was driving, and finally I tried it with a different headset-- and the issue did not recur! I suspected an incompatibility with the iPhone's noise cancellation technology.

    Anyway, try looking for a common thread like that. For example: Is your SIMM card fresh or has it gone from phone to phone?
     
  18. cjbryce thread starter macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #18
    No earpiece used at all.
     
  19. thatisme macrumors 6502

    thatisme

    Joined:
    Mar 23, 2010
    Location:
    United States
    #19
    I've had similar issues, but not necessarily when "on" a call. Mine hangs when I initiate a call. The handset calls out, but the phone on the other end doesn't ring... When trying to end the call, it wont. The only way out of the call is a shutdown, reboot. It doesn't happen often, but it is a PITA when it does.
     
  20. cjbryce thread starter macrumors 6502

    cjbryce

    Joined:
    Jun 4, 2008
    Location:
    London
    #20
    OK, let's try to establish a pattern if we can

    Location
    Signal strength
    Battery level
    Network provider
    iOS version
    Carrier update version
     
  21. dontwalkhand macrumors 601

    dontwalkhand

    Joined:
    Jul 5, 2007
    Location:
    Phoenix, AZ
    #21
    I had the same issue when I had my at&t iPhone 4, the call would drop, and you can press end all day long and nothing would happen. This seemed to have also only happened when I was in my apartment.
     
  22. OpisthorcisX macrumors newbie

    Joined:
    Apr 6, 2011
    Location:
    København
    #22
    Location: Edinburgh, but only occurs when home in the New Town area
    Signal strength: 1 bar,3G
    Battery level: >80%
    Network provider: O2
    iOS version: 4.3.2


    I'm pretty sure it's down to the crappy signal I get at home as it's yet to happen away from my flat.
     

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