How does iMessage work ?

Discussion in 'iPhone' started by JF Mezei, Jan 11, 2012.

  1. JF Mezei

    JF Mezei Guest

    Just curious here.

    How does iMessage work ? When I want to send an SMS, does it first send
    it to Apple to find out if that telephone number is a destination known
    to Apple and if not, it then sends it via the mobile network's SMS ?

    So this would mean that Apple keeps tracks of every iPhone user in the
    world who is currently "on-line" ?


    Is there a way to know while typing the SMS whether it will be sent via
    iMessage or via SMS ?
     
    JF Mezei, Jan 11, 2012
    #1
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  2. JF Mezei

    Alan Browne Guest

    On 2012-01-11 12:56 , JF Mezei wrote:
    > Just curious here.
    >
    > How does iMessage work ? When I want to send an SMS, does it first send
    > it to Apple to find out if that telephone number is a destination known
    > to Apple and if not, it then sends it via the mobile network's SMS ?
    >
    > So this would mean that Apple keeps tracks of every iPhone user in the
    > world who is currently "on-line" ?


    Partial answer here.
    http://en.wikipedia.org/wiki/IMessage

    > Is there a way to know while typing the SMS whether it will be sent via
    > iMessage or via SMS ?


    If the To bubble is green, it is going out SMS. Blue: iMessage.

    --
    "We demand rigidly defined areas of doubt and uncertainty."
    Douglas Adams - (Could have been a GPS engineer).
     
    Alan Browne, Jan 11, 2012
    #2
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  3. JF Mezei

    Guest

    JF Mezei <> writes:
    >
    > How does iMessage work ? When I want to send an SMS, does it first send
    > it to Apple to find out if that telephone number is a destination known
    > to Apple and if not, it then sends it via the mobile network's SMS ?


    If you have iMessage enabled, as soon as you enter an address
    or phone number to which you want to route a message, Messages
    contacts Apple and sees if that address is recognized. If so,
    Messages turns from green to blue to let you know that the
    message will go out over iMessage.

    > So this would mean that Apple keeps tracks of every iPhone user in the
    > world who is currently "on-line" ?


    Nope. If you don't have iMessage in front, then any message
    that comes to you over it comes by push.

    > Is there a way to know while typing the SMS whether it will be sent via
    > iMessage or via SMS ?


    The color. And the light gray text in the box in which you type
    the message will say "iMessage".

    --
    Plain Bread alone for e-mail, thanks. The rest gets trashed.
     
    , Jan 12, 2012
    #3
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