Two iPhones and one Apple ID iMessage Trouble

I'm wondering if there's anyone out there who has two iPhones and one Apple ID, as I am having problems with iMessage not activating on one.

I was thinking that iMessage options for sending and receiving would be like this:
Phone 1: Phone 1's #, Phone 2's #, Apple ID
Phone 2: Phone 1's #, Phone 2's #, Apple ID

However, my iPhones are like so:
Phone 1: Phone 1's #, Apple ID
Phone 2: Phone 1's #, Apple ID, Phone 2's # GREYED OUT

Phone 2's number fails to activate. If it makes any difference, Phone 1 is an AT&T iPhone 4, and Phone 2 is an unlocked iPhone 4S (bought in the US), on Japan's NTT DoCoMo (an unsupported carrier).

Prior to upgrading to iOS 6, I was able to send/receive messages on Phone 2 using Phone 2's phone number and Apple ID. I was also able to do so after upgrading, until I upgraded Phone 1 to iOS 6, and that is when Phone 1's number got "linked" to my Apple ID, and Phone 2's number will no longer activate.

Is it possible to have two phone numbers linked, or unified, with one Apple ID?

filmfanatic24 said:

I have nothing to contribute but to say I'm going to try to do this very thing and if it doesn't work that might be a deal breaker for me.

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Please update after you try it!

xAnthony said:

Simple solution... Use two Apple ID's. Use ONE Apple ID for sharing/purchasing Apps. And then have the second user create their own Apple ID for iCloud. iMessage data falls under your iCloud account.

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I do not want two Apple IDs, as I am the sole user and would like to use the same Apple ID for both iPhones, so I can receive iMessages on both phones via the same Apple ID.

After researching a bit more and asking questions, apparently it is possible to have two phone numbers linked to one Apple ID, and people have been able to use both numbers and the Apple ID to send/receive messages.

A few minutes ago I turned on/off iMessages on my Phone 1, which had been activated on iOS 6. Now that phone too is waiting for activation.

Right now, both of my phones can use my Apple ID to send/receive messages, but can no longer use either phone number. Both phones show "waiting for activation."

So, so strange.

Mikes58 said:

What a head ache . Both my wife and I have our iPhones liked to the one account on our home computer . iMessages worked perfectly and we could send messages to each other aswell as everyone else from our respective phones .

Last night we updated both phones to iOS6 and it is a disaster ! iMessages is causing Havock.
For a start when I send her a message I receive the same message instantly from myself . Both iMessage accounts have been linked to my phone number , we have to disable iMessages .

Any solutions ?

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Mike,
After updating to iOS 6, were both of your phone numbers showing up as a send/receive option, or just yours?

You write that both iMessage accounts have been linked to your phone number, but was that because your wife's phone number was unavailable?

If you have both phones linked to your phone number, any messages that you send to your wife will immediately come to you, as you describe. That's iMessage working as it should.