i'm trying to establish a communication between android mobile app , wifi router and a wifi device how can i do it?
here wifi device is home built and it is connected to the router and both are static(router and device) only the android mobile is roaming .
EX: when you send a msg through whatsapp first it goes to whatsap server --> router(identifing ur ip addr) --> 2nd android device .
here is there any way to remove/replace with any other thing intermediate server so that i can send signal to my home built wifi device via router sitting anywhere in the country .
suggestions are accepted.
Thanks.
MORE INFO: message is nothing but ON/OFF signal of one or more divice.