[OpenSIPS-Users] replace_from restore redundant from

[kaiser]

Bogdan,

 After calling twice uac_replace_from() in failure route
 

the 200 OK reply restores the from header as

    Status-Line: SIP/2.0 200 OK

        Via: SIP/2.0/UDP 
63.28.2.7:5060;branch=z9hG4bK58da20a7bfb4a3161fe339136a58343d
        Record-Route: 
<sip:63.26.2.3;lr=on;ftag=3449301004-70991;did=246.22c92a05>
        From: "k100" <sip:99910009 at 63.28.2.7:5060>;tag=3449301004-70991
        From: "k100" <sip:99910009 at 63.28.2.7:5060>;tag=3449301004-70991
        To: <sip:92140011 at 63.28.2.7:5060;transport=udp>;tag=as7b56bdb1
        Call-ID: 214351-3449301004-70984 at msx1.mydomain.com
        CSeq: 1 INVITE
        User-Agent: IPPBX


There are 2 FROM hd in this message which from hdr restored.

I try to find a way to output a trace in a compact format, it's long...

best regards
kaiser


Bogdan-Andrei Iancu 提到:
> Hi Kaiser,
>
> kaiser wrote:
>> Bogdan,
>>
>> We have tested several ways:
>>
>> 1. use uac_replace_from in failure route only:
>> this make redundant "from" header in reply 200 OK.
> so you use it only in failure_route, this should be ok - what do you 
> mean by redundant FROM hdr? can you post a trace ?
>>
>> 2. use uac_replace_from in request route and failure route:
>> It makes outgoping INVITE with strange from header.
> yes, this is is not correct. When doing uac_replace_from from request 
> route, you do the change for all future branches.
>
> Regards,
> Bogdan
>>
>> br
>> kk
>>
>>
>> Bogdan-Andrei Iancu 提到:
>>> Hi KK,
>>>
>>> do you do uac_replace_from() in other routes than failure_route() ? 
>>> like in request route when you process the request for the first time?
>>>
>>> Regards,
>>> Bogdan
>>>
>>> Gentrice's kaiser wrote:
>>>> Dear Sir:
>>>>
>>>>
>>>> I wrote a failure route for serial call mechanism, it help for no 
>>>> answer call ...
>>>> but all these serial calls need to have a new CallerID,
>>>> so I use replace_from for this purpose.
>>>>
>>>>
>>>>
>>>> modparam("uac","from_restore_mode","auto")
>>>>
>>>>
>>>> failure_route[3]
>>>> {
>>>> log(1,"******* I'm failure_route[3] *******\n");
>>>>
>>>> if (avp_pushto("$ru", "$avp(forward)"))
>>>> {
>>>> append_branch();
>>>> avp_delete("$avp(forward)");
>>>> uac_replace_from("sip:1234@$fd"); # change from header
>>>> t_on_failure("3"); # try next , recursive
>>>>
>>>> t_relay();
>>>>
>>>> }
>>>>
>>>> }
>>>>
>>>>
>>>>
>>>> If only one forward number in AVP array , this code working fine,
>>>> the issue will happen if multiple forward number trying, ( forward 
>>>> 2nd,3rd ...number)
>>>> the UAC module will restore from header in 200 OK of its following 
>>>> message when a UA answered,
>>>> we will have a duplicated "from header" in 200 OK (sending out 
>>>> opensips).
>>>> It means we will have 2 "from" headers (in 200 OK) to caller, if 
>>>> 2nd forwarded callee answer.
>>>>
>>>> Caller ---> Invite ---> opensips ----> UA 0, no answer
>>>> ----> UA 1, no answer
>>>> ---->UA 2, answer
>>>> <----200 OK
>>>> <---200OK<---
>>>>
>>>> this 200ok will have 2 "from" header.
>>>>
>>>>
>>>>
>>>> Most of UA just ignore redundant from header, but some can not.
>>>> I think it should be UAC modules issue, anyone can help me?
>>>>
>>>> best regards
>>>> KK
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>
>>>
>>
>