I wondered about this game through the years but never took time to play it. Then I found that it was free on the Mulawa website so I decided to try. I have enjoyed the puzzles and the beautiful scenery. It plays a little clunky on my cheap Windows 8 laptop but I was a little amazed it ran at all!
So I got through all the puzzles then I fell down a cliff and am apparently injured on a beach. I have a cell phone and a scrap of paper that says most helpfully "Xiama"
The obvious dialing of x-i-a-m-a receives a message that you have go for what it means, although you do have the right number of digits.
I have tried numerous guesses using any number of theories to assign meaning to "xiama".
If you can give me a hint that would be excellent, but at this point a spoiler would work as well.

Thanks
Ed A

It's nice to see you posting here - it has been a very long time since your last post! Hope all is well.

Let's wait and see if another player can help you with this. I can't find anything online that enlightens me, although I may be missing something.

If no one shows up who can assist, my suggestion would be that you write to the developer - I am sure he would be happy to give you a nudge or a spoiler.

Hi
If I remember correctly, the key to that puzzle is that as the message hints, the note stands for literally what it is. You need a little phrase.
I can be less vague if need be

Thanks so much for the help, flotsam.

I actually played all of Peter's games back in 2018 and struck up a nice email exchange with him. He helped when I got stuck and we exchanged a bit about what was going on in our lives. He's a very nice guy. I admittedly didn't get the final code for the phone either and Peter gave me the answer. Start with "Xiama is...." 3 more words after that. If you need more of a nudge Ed A, let me know.

Thank you for your offer of help, JKEerie. Much appreciated.

Hello everyone.
Thank you for helping me.
I wish I could say that I have seen the light, but alas, no. I am still on the beach, phone in hand.
I have not given up but I am wrestling with Xiama being an acronym (from an old interview with the developer)..and JKEerie - your hint above starts like an acronym...but generally in an acronym each letter stands for something. But I already dialed X-I-A-M-A so it can't be an acronym exactly, I guess.
I have been working a lot of hours so I don't get much time to play or much else. But I have a couple of ideas to try and a little time this evening so it's back to the beach for me!
Thank you again.

Good luck, EdA. Please post again if you need more help.

Woo-hoo! I got it! Thank you for the hints...got the phrase but still had to turn it into 5 numbers that weren't x-i-a-m-a...Had one of those "could it be?.." moments and voila I am doing my happy dance.
Be well everyone and thanks again.
Now maybe Magnetic!

Great to hear you figured it out!

Cheers to you, EdA!!! Good going!

Well done!
Was it that game that had the turtle puzzles?