Re: [Users] branch parameter in ACK set to zero?

Hi Bogdan,

I have attached an html file that shows the call trace (note that the OpenSER is 65.185.232.62:5061in the flow). I will send the log file and openser.cfg in a separate email since it would put me over the 40K limit.

thanks, Tim

On 5/30/07, Bogdan-Andrei Iancu bogdan@voice-system.ro wrote:

Hi Tim,

the VIA branch param must not be 0, indeed. Could you provide an network trace for the entire call and the debug log for level 9?

regards, bogdan

Tim Madorma wrote:

...

Hi,

In testing with OpenSER 1.2 I noticed that the branch parameter of the Via in the ACK to 200 OK has a value of zero. This does not seem right. From 16.6 of RFC-3261:

    The proxy MUST insert a Via header field value into the copy
    before the existing Via header field values.  The construction
    of this value follows the same guidelines of Section 8.1.1.7.
    This implies that the proxy will compute its own branch
    parameter, which will be globally unique for that branch, and
    contain the requisite magic cookie.

Please advise.

thanks, Tim

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