[Kamailio-Users] uac_replace_from unexpected behavior

[Daniel-Constantin Mierla]

On 03/16/2010 01:03 PM, Brandon Armstead wrote:
> Value of uac_restore_mode is not set so "auto".

but if it is not set to something else, this is the default value.

Cheers,
Daniel

>
> Thanks!
>
> On Tue, Mar 16, 2010 at 7:00 AM, Daniel-Constantin Mierla 
> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>
>     Hello,
>
>
>     On 03/16/2010 12:52 PM, Brandon Armstead wrote:
>>     Daniel,
>>
>>        This is 1.5 and there is nothing between the quotes "".
>     the question is whether the display name attribute in From header
>     structure includes the quotes or not -- this is to be revealed by
>     code.
>
>
>>
>>     The last time I tried to remove_hf, and then append_hf(From) or
>>     To header, it seemed to break call flow completely?
>
>     It can break in case you have non-RFC3261 compliant devices.
>
>     What is the value of uac module parameter from_restore_mode?
>
>     If it is auto or not set, then it is not the same behavior as with
>     remove_hf/append_hf.
>
>
>>       I will give it another go, however if you have any further
>>     thoughts it is much appreciated, thanks!
>     Going to check the sources and come back with more details.
>
>     Cheers,
>     Daniel
>
>
>>
>>     Sincerely,
>>     Brandon Armstead
>>
>>     On Tue, Mar 16, 2010 at 6:44 AM, Daniel-Constantin Mierla
>>     <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>
>>         Hello,
>>
>>
>>         On 03/16/2010 02:30 AM, Brandon Armstead wrote:
>>
>>             Hello,
>>
>>             As always thank you ahead of time for your help and input!
>>
>>             I am currently calling uac_replace_from("", "") in effort
>>             to "leave uri" and "toss away display name"
>>
>>             Which does seem to work....... for the initial INVITE
>>
>>             However upon receiving an ACK with an empty display,
>>             however "" <- quotations, it does not clear the display
>>             "" which is causing issues with one of my upstream vendors.
>>
>>             Example / Scenario:
>>
>>             From: "" <sip:uri at host>
>>
>>             Expected Result upon uac_replace_from("",""):      
>>              From: <sip:uri at host>
>>
>>             Current Result: From: "" <sip:uri at host>
>>
>>             As you can see it is not stripping the "" empty display
>>             quotes.
>>
>>             Any thoughts / ideas / suggestions to get my desired affect?
>>
>>         could be that display name is set to empty string (what is
>>         between double quotes) and in this case is nothing to replace
>>         -- I have to doublecheck the sources. Is it 1.5 or 3.0?
>>
>>         Are you using From auto-replacing mode? If not, a solution
>>         for now is to do From update using header manipulation functions:
>>
>>         remove_hf("From");
>>         append_hf("From: <$fu>;tag=$ft\r\n", "From");
>>
>>         Cheers,
>>         Daniel
>>
>>         -- 
>>         Daniel-Constantin Mierla
>>         Kamailio SIP Router Masterclass, Berlin, March 22-26, 2010
>>         * http://www.asipto.com/index.php/sip-router-masterclass/
>>
>>
>
>     -- 
>     Daniel-Constantin Mierla
>     Kamailio SIP Router Masterclass, Berlin, March 22-26, 2010
>     *http://www.asipto.com/index.php/sip-router-masterclass/
>          
>
>

-- 
Daniel-Constantin Mierla
Kamailio SIP Router Masterclass, Berlin, March 22-26, 2010
* http://www.asipto.com/index.php/sip-router-masterclass/

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