What Asterisk is doing actually depends on how it is configured. If you are, by design, accepting calls for a particular [user] through the default context from the general section in sip.conf it will generate the correct response, but this is not because asterisk recognized the situation and behaved appropriately, but because it's broken and doesn't check for the correct context to determine if the call should return a 200/OK or whether it should say 404 because the call could never succeed if it where an INVITE.
This is also closely related to Asterisk SIP's lack of proper [user section] authentication/recognition for incoming calls. We've seen a lot of posts here where new users have problems with this, but the real problem is usually not acknowledged.
Olle E. Johansson wrote:
Karl Brose wrote:
If the response to an OPTIONS is generated by a proxy server, the
This is what asterisk is doing, or?
see above
Please explain where and how you think Asterisk is not following the RFC, and I'll look into it.
The other alternative would be to act as a UAS, but that may be confusing.
Is any phone using this for checking if an URL is busy or not?
In dialogue or out of dialogue?
Just want to know if there's anything out there to test with. Thank you for looking this up. /O
I found out through an actual server that send OPTION packets. but that was a while ago before I fixed my drivers.
Haven't submitted it to the bug tracker.
I posted a fix for this earlier today here for the recent cvs'es, it at least looks up the context to test for the extension called and returns 200 if that extension is valid. But there should really be more processing for more general compliance.
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