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Author Topic: iMessaging With Out A Sim Card.  (Read 512 times)


  • Kitizen
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iMessaging With Out A Sim Card.
« on: March 04, 2018, 02:21:09 PM »

On my wifes iphone4c With Out A Sim card in I tried sending an iMessage to my iphone4 and it worked much to my amazement. :)
I think because we have not only the phone number but email address added to the icloud accounts as I noticed it had used my wife's email address header for sending.
I have a set of 8 fixed IP's From my Eclipse isp.
BT ADSL2 line>HG612 set as a Modem, Bridge, WAN not Bound to LAN1 or 2 >Smoothwall (Hardware Firewall and routing) > Ethernet LAN, DMZ,WiFI LAN and Spare LAN .
DSLstats LAN2  linked Ethernet


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  • Kitizen
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Re: iMessaging With Out A Sim Card.
« Reply #1 on: March 04, 2018, 03:26:55 PM »

Not surprised that it worked.  As long as the device has internet access via WiFi, no need for a sim card.

In Settings, you can configure whether to start new conversations using either Apple ID (your email address) or phone number.  I prefer to use phone number.

When sending iMessage from phone number rather than Apple ID I believe the phone number has to be one that is currently associated with your account, ie a valid SIM must be in one of your devices, but it could be a different device from the one in your hand.    For example, I can send and receive iMessages from my iPad, or my iMac PC, using the phone number of my iPhone.   :)