Text feature missing images

When sending images to a mobile number purchased from Zendesk as a temporary line I've enabled it for images but no images are coming through when sent.

Text messages do come through, but how do you know if someone has only sent an image to your mobile number? and it doesn't notify the other person who sent the image that it has failed?

What's the go with the text feature?

Edit: I tested a PDF file and it failed on the sender side which is better than showing it sent.

Edit 2:

Okay found the issue looks like a purchased a mobile number without MMS, suggest making this more clear to the user when they go to get a number, perhaps a faded image or checkboxes showing enabled and disabled features.

The next problem is when I went to get a new mobile number it appears MMS is not available for Australia? is it possible to get an MMS mobile number in Australia?

What about Australian numbers porting in as I interpreted the porting of the number would keep MMS enabled?

Suggest updating this article with more info related to regions and what is capable.

https://support.zendesk.com/hc/en-us/articles/4408885904922-Adding-and-managing-Text-numbers