Hi All
just found this on the Turkish consulate website might be of use if you are planning to buy a Turkish sim card to use in your mobile when in Turkey
MOBILE PHONES NEED TO BE REGISTERED FOR USE WITH SIM CARDS BOUGHT IN TURKEY
Turkish and foreign visitors are entitled to bring one mobile phone into Turkey within one calendar year for use during their stay in Turkey. A personal mobile phone brought in to Turkey in this manner is exempt from tax and duty.
It is necessary to register the mobile phones in order to use them with SIM card bought from a Turkish network operator. (In order to use such a mobile phone with a SIM card bought in Turkey from a Turkish network operator, the mobile phone number assigned to the SIM card needs to be correlated with the IMEI number of the mobile phone. The handset can only be registered with one line. Phones not registered in this way will be blocked and unable to receive or make calls. There is no charge levied for this registration.)
No customs documents are required for the registration of mobile phones.
Mobile phones to be brought into Turkey are to be registered with the Telecommunication Institution or with the mobile phone shops of Turkish Network Operators (Avea, Turkcell or Telsim).
Documents required for the registration of mobile phones are:
TR Citizenship Number or Passport number
Passport (Identity details indicated on the passport)
Copies of all Turkish entry/exit stamps in the passport
No more than one mobile phone per person can be registered in one calendar year.
Steve