[asterisk-users] Confused by concepts behind pjsip: endpoint, aor, contact

Joshua Colp jcolp at digium.com
Sun Jan 4 16:40:45 CST 2015

Antonio Gómez Soto wrote:
> Hello,

Kia ora,

> 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.

Have you looked on the wiki[1]? There's examples as well as a conversion 
script and information about the various things.

> 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?


[1] https://wiki.asterisk.org/wiki/display/AST/Configuring+res_pjsip

Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org

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