Well, this is odd.

Some customers of Australian carrier Telstra were unable to use iMessage and FaceTime on Wednesday morning, as technicians worked to fix the issue with the two Apple services.

The carrier's outages page confirmed the problem. In a tweet, Telstra said customers could continue to send and receive SMS messages, but later stated those services were coming back to normal.

"Earlier today some customers experienced a disruption to Apple iMessage and FaceTime services. We worked with Apple to resolve this issue. Services are now being progressively being restored. We apologise for any inconvenience caused," a Telstra spokesperson said via email.

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One Twitter user, Nikolai Hampton, reported that Apple's servers were not reachable by Telstra.

Hampton suggested updating the phone's DNS to get access to different servers, while another user Nathan Bujega, said a VPN would get around the problem.

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Wednesday's outage is not helped by the fact the iMessage app bundles SMS and iMessage services together, leading Telstra to instruct users how to force send an SMS message.

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Apple's iMessage has a history of not playing well with carriers.

As the service gained popularity, those who switched from iOS and forgot to turn off iMessage reported missing messages, something that's arguably been a headache for carriers.