I've seen a post where someone has done this some years ago so theoretically it is possible.

The application is mobile to mobile via a battery power router, gives better range than just mobile to mobile.

Does a user id, server and password need to be set as these will not be using the internet.

How exactly should the ip address be entered?

Does the port setting need anything doing to it.

Thanks John

Unfortunately I'm attempting this with no Internet connection. I do understand that using a SIP server makes life a lot easier.

On the router I should be able to make the ip address fixed.

So two phones, step one how do I determine what the user is? Is it the name of the phone or a name set in Mizudroid?

How do I determine the port? Is it set as an option in mizudroid? Is it the local signalling port which is buried in the menus if so do I set the same value on both phones such as 11000?

Thanks John

Thank you.

If I set the local signalling port to 50100 ie within the range of 49152 to 65534 and use the name in Mizudroid then john@192.168.50.95:50100 works as an address for a voice call. I'll have to play with messaging.

The idea of a local server is interesting and makes the solution scalable without changing the user interface.

The reason the LAN without a server is important is two phones and a GL-AR150 will work. The GL-AR150 can be powered from a external battery pack of the type used to recharge phones. Add in a small solar panel and life becomes interesting.

Many thanks

Cheerio John