I am new to asterisk and using it for a research project. Have set up an
server (version 18.104.22.168) and 2 SIP phones (Linksys spa901) which are
registering fine with the server. They are able to call one another,
however, the problem is it takes roughly 8-10 seconds for the called phone
to ring. I have a really simple dialplan using only 4 digit extensions and
have turned off callerid. Both phones are on the same subnet and I have
enabled nat and keepalive.
Does anyone have an idea what could be wrong here or idea on how to debug