contacting ferry people in Baku/Alat

[Rioesmarex]

Maybe a dumb question from someone who is NOT tech savvy.
Nearly all the posts talk about leaving you phone number with shipping company/port officials to be contacted when the ferry is in port and ready to board.
I have a phone with a Mexican chip in it and a Mexican number ( I may also buy a cheap throw away U.S. phone )
In either event , how can Azerbaujani people call me when I have a Mexican or U.S. number ? ..... or do they mean they will send a text message ... or maybe use What'sApp or Skype.
I tried buying a simm card once in England and it turned into a disaster and I lost my money. My phone is " unlocked " so I could buy an Azerbaijan simm card if absolutely necessary.
Sorry for being so tech. dumb but us older people are not up on all the latest stuff.
Thanks
David

[bwv812]

If your phone is unlocked it should be as simple as buying a local SIM and inserting it. Locals aren't going to pay steep charges to call/text a Mexican number.

[agshin]

I can add. It depends on whether they use whatsapp and have a good mood or not. Dont expect that anyone will call your Mexican sim card.