Small voip system

I am just building a small pbx system stricktly for several voip phones/tablets.

As a start, I have 2 users defined in sip.conf, and two extensions defined in extension.conf.

Each seems to be able to connect to the server when attempting a call, BUT … it is
unable to connect to the target extension since it does not know how to connect (ie:
ipaddress etc).

Can someone walk me thru this?

TIA
Martyn

Wrong forum. You want Asterisk Support. The phones aren’t registering and you haven’t turned off allow guest.