[OpenSIPS-Users] R: R: serialize_branches() and q value....

[Mauro Davi']

Hi Bogdan,

I have a little problem...

In this way I can serialize a set of know called party (i.e. with the sip address in the form sip:username at ipaddress:port)...

But I cannot add, for example the following branch:

Append_branch("sip:user1 at domain.com","0.1")
Append_branch("sip:user2 at domain.com","0.2")
Append_branch("sip:user3 at domain.com","0.3")

Because the result is a misrouted call (i.e. the requested sip uri isn't reacheable...).

So I thought to add a RURI after invoked the lookup function...

Somethink like this:

$ru="sip:user1 at domain.com";
lookup("location");
#Now $ru contain the resolved URI of user1
append_branch("$ru","0.1");
$ru="sip:user2 at domain.com";
lookup("location");
#Now $ru contain the resolved URI of user2
append_branch("$ru","0.2");
$ru="sip:user3 at domain.com";
lookup("location");
#Now $ru contain the resolved URI of user3
append_branch("$ru","0.3");

But I didn't had the expected result... I cannot use pseudo-variable in the append_branch function...

Could you tell me how I can solve this problem? There is a work-around? Or is there a correct way to call a group of user associated to a SIP URI via serial forking?

Thank in andvance
	MD

-----Messaggio originale-----
Da: Bogdan-Andrei Iancu [mailto:bogdan at voice-system.ro] 
Inviato: mercoledì 25 febbraio 2009 15:14
A: Mauro Davi'
Cc: users at lists.opensips.org
Oggetto: Re: R: [OpenSIPS-Users] serialize_branches() and q value....

Hi Mauro,

(sorry for mistyping your name in the first place)

the correct way to inject a q value via the append_branch is:
    Append_branch("sip:user2 at domain.com", 10 );

Regards,
Bogdan


Mauro Davi' wrote:
> Hi Bogdan,
>
> Thanks for the reply. But I have only one question...
>
> Is it possible to set the branches qvalue from a script code?
>
> I try samething like:
>
> Append_branch();
> $ru="sip:user2 at domain.com;q=0.1"
>
> Or:
>
> Append_branch("sip:user2 at domain.com;q=0.1");
>
> But the log result is ever:
>
> "DBG:core:serialize_branches: nothing to do - all same q!"
>
> Coould you help me, please?
>
> Thanks a lot
>     MD
>
>
> -----Messaggio originale-----
> Da: Bogdan-Andrei Iancu [mailto:bogdan at voice-system.ro] 
> Inviato: mercoledì 25 febbraio 2009 14:54
> A: Mauro Davi'
> Cc: users at lists.opensips.org
> Oggetto: Re: [OpenSIPS-Users] serialize_branches() and q value....
>
> Hi Marco,
>
> before getting into your script, just some important notice about SIP, 
> forking and q value...
>
> According to RFC 3261 (and how the serialize_branches() works), when you 
> have a set of destinations with different q values, the forking must 
> work like this:
>
> 1) order the entire set based on the q value
> 2) select all dsts that have as q value the min q val from the set (of 
> course all of the selected dsts will have the q)
> 3) do parallel forking with the selected dsts
> 4) if still failed, remove the used dsts and go back to step 2 (serial 
> forking).
>
>
> So, this is actually a combination of serial and parallel forking - the 
> dsts with different q will be serial forked, but dsts with the same q 
> will be parallel forked.
>
> Regards,
> Bogdan
>
> Mauro Davi' wrote:
>   
>> Hi All,
>>
>> I saw the documentation but it is to much difficult for me J (really I 
>> think that the folloeing information is missed...), so I have a question.
>>
>> The below script code add two new destination to my voip platform, 
>> parallel at domain.com and serial at domain.com <mailto:serial at domain.com>.
>>
>> The first one works great, but the second one have the same behaviour 
>> of the first one...
>>
>> The question is: How I can specify the q value of every branches?
>>
>> Thanks in advance.
>>
>> MD
>>
>> if(uri=~"^sip:parallel@" || uri=~"^sip:serial@" )
>>
>> {
>>
>> xlog("L_INFO","Check passed!!!\n");
>>
>> $var(i)=0;
>>
>> while ($var(i) < 2)
>>
>> {
>>
>> xlog("L_INFO","Cycle Enter $var(i), RURI:$ru\n");
>>
>> if ($var(i) == 0)
>>
>> {
>>
>> $ru="sip:user1 at domain.com";
>>
>> }
>>
>> else
>>
>> {
>>
>> append_branch();
>>
>> $ru="sip:user2 at domain.com";
>>
>> }
>>
>> alias_db_lookup("dbaliases");
>>
>> if (is_uri_host_local())
>>
>> {
>>
>> # -- Inbound to inbound
>>
>> if(uri=~"^sip:[0-9]+@")
>>
>> {
>>
>> # only route numeric users to PSTN
>>
>> t_on_failure("2");
>>
>> route(5);
>>
>> }
>>
>> route(6);
>>
>> }
>>
>> else
>>
>> {
>>
>> # -- Inbound to outbound
>>
>> # Here we must check the to domain to verify if
>>
>> # we can send the request to a corporate SBC
>>
>> sl_send_reply("403", "Forbidden");
>>
>> exit;
>>
>> }
>>
>> $var(i) = $var(i) + 1;
>>
>> xlog("L_INFO","Cycle Leave $var(i), RURI:$ru");
>>
>> }
>>
>> if (uri=~"^sip:serial@")
>>
>> {
>>
>> setbflag(10);
>>
>> serialize_branches(1);
>>
>> }
>>
>> route(3);
>>
>> exit;
>>
>> }
>>
>> ------------------------------------------------------------------------
>>
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>
>
>