[Users] new version openser how to deal with call a SIP uri with multi registar

[Bogdan-Andrei Iancu]

Hi Jimmy.

see inline comments. As short note, what you are describing in parallel 
forking and it behaves exactly as you thing (see RFC 3261).

regards,
bogdan

jimmy way wrote:

>Hi all,
>
>    The question is:
>    1. a user A registar from multi address, like
>       UA1 registrar from address1
>       UA2 registrar from address2
>       UA3 registrar from address3
>       and so on
>       so in db "location" there are multi address in
>the list about user A
>    2. if set append_branch as on in registrar module,
>when user B invite user A, Openser server will append
>all these address in the invite packet. So all these
>user will get the call. normally all UAs ringing, then
>    3. if one of these UAs accept the call, how about
>other UAs, will they stop ringing?
>  
>
yes, the other pending branches will be automatically cancelled.

>    4. if one of these UAs deny(40x) the call, how
>about other UAs, will the still ringing?
>  
>
yes - there are two way for a parallel forked call to end: either one of 
the branches picks up (2xx reply), either all of them send negative 
replies (>=300).

>    5. if one of these UAs not connected, how about
>caller the callee do?
>  
>
if one of the branches is not connected (but still registered), an 
internal timeout (408) will be generated for it.

>
>tks.
>Jimway
>
>
>		
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