I am going to write a clone of main functions of MSN Messager with the functions like chatting, talking with webcam.
I wonder how many man-days are needed for such a project?
I estimated it's about 40 man-days. Is 40 days too long or too short?
I am junior so I needed someone experienced to give a more correct estimation.
Also, are there some third party classes I can take into my project to fasten the development?
I just cannot find the answer by googling so I hope someone can answer me. Thanks a lot.