Activated Iphone X and not receiving first text message.....

[noupf]

So I received my iphone x from att this weekend. It came with a sim card ( so I did not swap from my old iphone6 that I was upgrading from). My 6 has ios 11.2 on it and I did a backup of the 6 and began to activate my X as a new phone. I went through the activation process on att's website, updadated the X to 11.2 and then did the restore. Everything seemed fine, but ive had friends and co workers texting me and then asking why I am not responding. It seems I am not getting the first text message from everybody, but eventually when a second text is sent, I get that one and everything from that point forward is fine. I've tested it a few times today and its the same thing. People send me an initial text and its not being delivered ( even on their phones the "delivered" text does not appear under their message to me). Once a second and different message is sent ot me, I get it and it says "delivered" on their phone.

Any ideas?

I saw one suggestion about the do not disturb feature, but that is not the problem.

 

[KrisLord]

Are they sending from Apple or android devices?

It might be worth working out if this is an SMS issue or an iMessage issue.

I would check what phone number is listed in iMessage for you, it could be a temporary number from the new SIM.

 

[noupf]

Are they sending from Apple or android devices?

It might be worth working out if this is an SMS issue or an iMessage issue.

I would check what phone number is listed in iMessage for you, it could be a temporary number from the new SIM.

good call. All the "first" messages that I have missed were sent from iphones ( iMessage ). Just had a buddy with a Samsung phone text me, and I got his message the first time......

what would be the next step ?