spellerpages feature in CKEditor

Right now we are using FCKEditor 2.5 (commercial license) and we are using spellerpages to perform spellCheck using jspell.
We want to updrate FCKEditor to CKEditor. But I am having hard time to find the similar feature (speller pages) on CKEditor. Can you please help me to integarte jspell with CKEditor using spellerPages?

I appreciate your help.

Thanks
Jayasree