I already download walkie talkie. i tried walkie talkie application using bluetooth and work fine. but when i use wifi i got trouble. i have two sony experia E. i installed on both of this device. one of sony experia E already activated using tethering mode. another sony experia E successfull connected. but i have ip address both of sony experia E 127.0.0.1. how to configure wifi sony experia E to ip address 192.168.0.1 and another sony experia E 192.168.0.2 using port 5500. operating system using android jelly bean. can anyone help to set wifi both device. thanks.