[Serusers] branch parameter

[Martin Hoffmann]

Tuffy Dhawan wrote:
>
> www.adoreinfotech.com is offering a Softphone based on Microsoft RTC/1.2 
> which is not generating branch parameter while sending INVITE but call is 
> still going through.

3261 also provides means to cope with a missing or outdated branch
parameter. Makes transaction handling a bit more awkward.

> How is branch parameter used as per RFC 3261.

http://www.ietf.org/rfc/rfc3261.txt

Regards,
Martin