I'm moving to Dubai to work for Emirates in December and I'd like to know in advance what I'll be faced with when it comes to arranging a mobile phone. I imagine it will be be considerably cheaper to change networks and start again with a new contract and phone with a UAE network!

1. Do networks provide competitive tariffs for texting UK and Europe (imparticular Portugal where my family now live) and low cost calls?

2. Will I need to bring utility statements etc. like we have to in UK for credit check before getting a contract phone or are there 'SIM free' alternatives which are competitive? Is a credit check cross border or only applies in UK???

3. The iphone looks attractive and I wonder if it is only available on one exclusive network like it is in UK and US or is it illegal to do that in UAE like it is in Italy?

4. Is it possible to arrange a contract before I arrive? Clearly this would have to be with an online service as opposed to a shop (as I'm currently in UK not Dubai) and posted to UK until I get my accomodation details finalised.

Thanks in advance!