I am slightly confused by the difference between chan_sip and pjsip. Especially the new (to me) objects aor and contact.
I am having trouble mapping them to the typical SIP configuration settings on a phone.
Suppose I have a phone with two line buttons, for two extension numbers. Now, I think that means two ‘endpoints’ in pjsip right? But what exactly is the difference between aor and contact? So why does aor have a max_contacts value?
And where do phone registrations fit in, where are those kept anyway?
I hope someone can shed some light for me here.