Great, we have WiFi Calling, but wifi is off during standby?!

Discussion in 'iPhone' started by silverblack, Sep 23, 2015.

  1. silverblack macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #1
    Apple is offering the WiFi Calling with more carriers supporting it.
    https://support.apple.com/en-ca/HT203032

    This is wonderful. However, iPhones are designed to turn off wifi during standby (sleep) to conserve battery. This is not a problem when making a call, because wifi will reconnect as soon as you unlock the screen. But...

    How is the phone supposed to receive calls when it disconnects from wifi, and have no cellular signals (the whole point of needing WiFi Calling in the first place)?

    Am I missing something here?
     
  2. eclipxe macrumors regular

    Joined:
    Jun 28, 2007
    #2
    Who says WIFI is turned off during standby?
     
  3. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #3
    It is (when phone is not connected to power source of course).
    Google it yourself.
     
  4. Ole'schooliBook macrumors member

    Joined:
    Jan 25, 2011
    #4
    Curious. How do notifications, emails, messages, etc. come through to your device when the device is in standby if the phone supposedly disables wifi?
     
  5. nivekr11 macrumors regular

    Joined:
    Aug 1, 2010
    #5
    I think it (wifi) stays on when your phone has wifi calling connected to the carrier. At least that is what I have seen on mine.
     
  6. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #6
    I am no iOS programmer here. But I believe it only connects intermittently to the 3G/LTE or wifi. Just a guess.
     
  7. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #7
    Definitely not mine. I am certain of it.
     
  8. CEmajr macrumors 601

    Joined:
    Dec 18, 2012
    Location:
    Charlotte, NC
    #8
    It stays connected to wifi when you're on wifi calling.
     
  9. bpeeps macrumors 68020

    bpeeps

    Joined:
    May 6, 2011
    #9
    You are missing, quite possibly, everything. This was a feature for iOS6 and below.
     
  10. oldwren macrumors 6502

    oldwren

    Joined:
    Jan 3, 2012
    #10
    If wifi is off in standby, how do push notifications come in immediately? I can send an email to myself and immediately get a push notification on standby.
     
  11. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #11
    I don't have a response to this. But here's the behaviour of my iPhone:

    - put phone on airplane mode, and then turned on wifi
    - phone switches to WiFi Calling (showing Wifi Rogers on upper left corner for me)
    - put phone on standby (screen off) and not connected to power
    - wait 10, 15 mins, called my iPhone with and another phone
    - iPhone never rang, went to voicemail

    Anyone else experiencing this?
     
  12. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #12
    3G/LTE?
     
  13. nivekr11 macrumors regular

    Joined:
    Aug 1, 2010
    #13
    I do the same except my phone rings. I'm on T-Mobile.
     
  14. CEmajr macrumors 601

    Joined:
    Dec 18, 2012
    Location:
    Charlotte, NC
    #14
    Nope. I'm on my iPad right now and my iPhone 6 Plus is lying on the table on standby. I press the sleep/wake button and it shows T-Mobile Wi-Fi. I receive a text it shows T-mobile Wi-Fi.
     
  15. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #15
    Thanks for checking and reporting.
    The problem could be just with Rogers, or even just my phone/wifi network.
    Glad to hear it's working for others.
     
  16. oldwren macrumors 6502

    oldwren

    Joined:
    Jan 3, 2012
    #16
    No. My iPad is WiFi only and still receives push notifications instantly. Over WiFi.

    /thread
     
  17. Billymac19 macrumors regular

    Billymac19

    Joined:
    Apr 29, 2011
    Location:
    Phila, PA
    #17
    ive had wifi calling since Tmo had it on last years beta, never had what OP is stating, in fact its been basically perfect..must be something with the carrier
     
  18. C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #18
    If you only have WiFi enabled then it might stay on even in standby since there's nothing (like mobile/cellular connection) to fall back on.
    That's because it's WiFi-only, it doesn't work the same way with an iPhone that also has a mobile/cellular connection.
     
  19. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #19
    Thanks for all the suggestions. Another complication is my wifi network, which is an enterprise network. It may be designed to cut off connection with devices on standby, so it can recycle the dynamic IPs for other devices.
     
  20. nostresshere macrumors 68030

    Joined:
    Dec 30, 2010
    #20
    Phone calls have been "free" for many many years. Why not just do regular calls vs wifi?
     
  21. silverblack thread starter macrumors 68030

    silverblack

    Joined:
    Nov 27, 2007
    #21
    What if you work in a building of cellular dead zone, and you are often away from your desk? Yet you need to provide your number for emergency (to receive calls).

    All you have is wifi...
     

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