Hey Thanks for your reply !
But, i am trying to connect it through LTE. SO basically my router will be somewhere in the field, and im trying to trigger the relays in the router using my webpage. My ISP says they dont give shared ip's but in my teltonika my wan shows a private ip. Sometimes when i reboot i get a public ip, but the ip which shows in the wan is different to the whatsmyip.com . So i cant connect through the ip address. Will VPN provide a way for access through the http web requests? if so please tell me how. Any help is appreciated!