is it possible to setup phones that auto register, similar to the function provided by call manger and call manager express by cisco?
I have a similer query, Can we auto register SIP Users to asterisk, if so what should be the configuration in pjsip.conf, to auto register all sip inbound calls.
NB this does not register. It simply allows calls in the default context from unknown peers. You cannot make outbound calls to these peers (which is the real purpose of registration).