cab calloway school of the arts Vibration and ringing would be the primary alert types prompting users to incoming voice calls and texting. Users have the option to assign MP3 files as ringtones allowing customisation of the handset in order to hear the song of these choice whenever the product rings. Handsfree communication is done possible because of the inclusion of an 3.5 mm audio Jack along with a built in speakerphone system. The subject of manufacturing technology is very vast and includes various types of machines tools required to manufacture finished products between simple hand-held tools, lathe machines, grinders, milling machines to highly versatile and sophisticated computerised numerical control or CNC machines and so forth. Of course it also involves many different techniques of manufacturing which may be a topic a few different details discussion plus some of those include casting, forging, alloying, welding, soldering, brazing etc. each of those techniques get their own advantages and limitations and so are a specialized field of knowledge themselves.