Unit 14 D2
The protocol I used to send the contacts from one phone to another is Bluetooth. The positive aspects of Bluetooth are most standard android phones have this application also unlike infrared it can send data from one phone to another from a further distance and it is also faster than infrared another positive feature it does not require the phones to be in a straight line. The negative aspects of Bluetooth are its range of sending data is limited also Bluetooth is not protected for attacks but if the devices are close together then the devices may be safe another negative feature is people who do not understand Bluetooth the task of switching on Bluetooth and making it discoverable might be difficult for them. Another protocol that I could of used to send contacts from one phone to another phone is (SMS) short message service.