Hi Im new on Asterisk
i have Asterisk
I like to know how can i change the setting of session-timers to refuse
right now i have it as Accept and i only recipe inbound calls for 30 minutes in my Session Expires setting i have 1800 secs .

The answer is in your subject.

Note that the peer can still re-invite at an interval of its choosing, even if you don’t send a supports for session-timers. That is the nature of sip.