Arabic characters issue

I have some problems with displaying some Arabic text in my iPhone application. When I am displaying it on a UILabel, it shows like ?????? ????? ?????? The string comes from server as XML, I parse it and display on a UILabel. I dont know this is due to a problem in iPhone or from Server side.

• I want to know how can I determine the string coming from server is having correct encoding and is a valid Arabic characters.




• Is it suffice to print value each character and check it lies between Arabic Unicode characters. (Like ASCII value of character A is 65 and that of Z is 90. So a value 70 must be a ASCII character).




• In server the string is encoded with UTF8 encoding. And server program written in c#. What is the write encoding method to transfer Arabic text from server to iPhone?




• Do I need to use other fonts to display Arabic characters correctly.




• Is there any XML file with Arabic content in Internet, from where I can parse and display arabic text correctly?

Thanks in advance..

EDIT:

When I NSLogged XML data I got same ???? ???? ??? characters.

EDIT

See a XML styled data that I got in console.

<CB_SEC_COMP>
 <SC_COMP_ID>9999</SC_COMP_ID>
 <SCA_LONG_NAME>???? ????? ?????????? ????? ?????????</SCA_LONG_NAME>
 <SCE_LONG_NAME>CHINA SECURITY &amp; SURVEILLANCE TECHNOLOGY, INC.</SCE_LONG_NAME>
 <SCA_SHORT_NAME>???? ????? ?????????</SCA_SHORT_NAME>
 <SCE_SHORT_NAME>CHINA SECURITY &amp; SUR</SCE_SHORT_NAME>
 <SC_MRK_CODE>9</SC_MRK_CODE>
 <SC_SEC_CODE>86</SC_SEC_CODE>
 <SC_STATUS>Y</SC_STATUS>
 <TICKER_ID>CSR</TICKER_ID>
 <SC_MRK_TYPE_CODE>0001</SC_MRK_TYPE_CODE>
 <SC_EXCHANGE>DFM</SC_EXCHANGE>
 <CUR_CODE>AED</CUR_CODE>
 </CB_SEC_COMP>
 

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