Issue with iMessage and FaceTime Activation After Number Transfer | iD Mobile Community
Skip to main content
Question

Issue with iMessage and FaceTime Activation After Number Transfer

  • January 16, 2026
  • 2 replies
  • 26 views

  • New Contributor

I recently transferred my mobile number from O2 to iD Mobile and received confirmation that the porting process was completed successfully. However, I am still unable to activate iMessage and FaceTime on this number.

 

The issue appears to be network-related, as I was able to successfully activate iMessage and FaceTime within minutes using a different SIM card. I have confirmed the following:

  • My number is correctly set in iPhone settings (Phone > My Number).
  • I can send and receive regular SMS and calls.
  • I can send an SMS to Apple’s activation number without issues.
  • I’ve tried all standard troubleshooting steps, including resetting network settings and reactivating iMessage/FaceTime.

It seems the problem might be related to the provisioning of my number on your network, particularly regarding Caller Line Identity (CLI) or SMS routing.

 

Could you please verify:

 

  1. That my number is fully registered on your systems after the port.
  2. That outgoing international SMS and CLI are properly configured for my number.
  3. Whether a new eSIM could help resolve the issue if the current one was not updated correctly after the port.

2 replies

Forum|alt.badge.img+1
  • iD Mobile Employee
  • January 16, 2026

Hi ​@KBO, Could you please confirm if you have received a text message confirming that your number has been successfully transferred?

 

In the meantime, please try the following steps to help reactivate iMessage and FaceTime on your iPhone:

Go to Settings > Messages and turn iMessage off.

Go to Settings > FaceTime and turn FaceTime off.

Restart your iPhone.

Turn iMessage and FaceTime back on.

 

Once completed, please check if you are able to activate iMessage and FaceTime successfully.

 

~Marquerita


  • Author
  • New Contributor
  • January 16, 2026

Hi Marquerita,

Yes, I have received messages as below.

good news! Your number has switched to iD Mobile, and your account with your previous provider has been disconnected. Just switched and having issues with iMessage or FaceTime? Check out our Community article for help with your settings: community.idmobile.co.uk/g-164/h-57840

I have tried the steps you described several times but couldn’t solve the issue.

Apple support advised ID mobile to check international SMS and CLI configuration of my number in ID mobile’s system.