[SR-Users] invite always contains "s"

Alex Balashov abalashov at evaristesys.com
Fri Apr 18 09:18:29 CEST 2014

Hi Vasco, 

That's because Asterisk uses sip:a at local.ip as the Contact URI in the AoR binding it requests from the registrar. When the registrar does a lookup(), it changes to the request URI to be equivalent to the registrant's contact, just as it's supposed to. 

But, you can easily get around this:

$var(old_did) = $rU;
lookup() etc. 
$rU = $var(old_did);
t_relay() etc. 

-- Alex

On 17 April 2014 02:23:42 GMT+04:00, Vasco Mendes <vasco.m at innovation-tic.com> wrote:
>I created an incoming trunk between iptel and my asterisk. Whatever the
>account is on iptel I always have in the from of received INVITE < sip
>:s at mypublicip :5060 >. < s > is not a recognized DID on my asterisk.
>Why do
>I receive this < s > in the from ??
>Many thanks for your help,
>Ce courrier électronique ne contient aucun virus ou logiciel
>malveillant parce que la protection avast! Antivirus est active.
>SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>sr-users at lists.sip-router.org

Sent from my mobile, and thus lacking in the refinement one might expect from a fully fledged keyboard. 

Alex Balashov - Principal 
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0671
Web: http://www.evaristesys.com/, http://www.alexbalashov.com
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