My protocol i used was Bluetooth there are many positive and negative points to do with Bluetooth.
- The positive points are
- It quick and easy
- you can be at other ends of a room and it will still send
- the picture is normally clear and not fuzzy
- however the negative points are
- it can sometimes take ages depending on the memory span on your phone
- the picture may come through to big or to small and in result on this being fuzzy
- it wont send if your too far away in distance
- it can take ages for you to find the pair you want
- on some phones you need a code to pair with someone else ( which takes time)
- its free
Other than Bluetooth though you can use picture message which is just sending the message in a text which is not so good though because the picture normally comes out rubbish and it costs which will take credit off you and will go over if your on contract..