A 192.168 address is an internal IP address. No one is going to be able to connect to that over the Internet. You need to use http://www.whatismyip.com or something similiar to get your external IP address to give people.
Also, please use the correct forum (here) to make a MCPE Server topic.
Also also, please don't make more than one topic for the same thing within 1 day of each other. Per the rules, "Creating more than one thread per server is not allowed."