Hello anybodies !

I am French student in  Voip. Actually, I make a training session in a video-conference enterprise. In my project I use OpenSIPs with more hardphone, softphone and other VoIP devices. In my tests, I saw one trouble with some polycom product (polycom softphone PVX 8,Polycom RMX 4.0.1.29, Polycom MGC ). This trouble is the URI in the "To" field is poorly formed. It's likely <sip:username> but this URI type wasn't parsed.
For troubleshoot this, i added this follow line in parse/parse_uri.c file at the line 396 :

default :
    /* if the user part isn't defined and if the "for loop" will is complete */
    if ( (*(p+1) == '>' ) && (uri->host.len == 0) ) {
        uri->user.s=s;
        uri->user.len=(p-s)+1;
        s=p+1;
    }
}  //End of  "case URI_USER"

To check whether your SIP client is bugging, you can add  the follow line in opensips.cfg file :
     if (is_method("REGISTER"))
     {
           sl_send_reply("111","You are $tU");

Hi Mathieu,

Such a TO URI is not valid at all - see RFC3261 - A valid SIP URI must have a domain name. So, your change breaks the SIP interoperability.

Regards,
Bogdan

Hello Bogdan,

I'm agree with you, but i must to use the Polycom video station in my project. This registration trouble exist in many polycom product. "a TO URI is not valid at all" it's true, but i can't edit the polycom firmware then I edit the openSIPs code.

I posted this message to help the technician will have this problème.

Regards,

Mathieu

But a better approach will be to report the bug to Policom so that they should align to the SIP standard.

Regards,
Bogdan

Hi in polycom equipment you can add the full uri in username!
This is a workaround, but i tested it and it works….