This issue is primarily a bug-fix issue. The format of the document has been changed to docbook in order to simplify maintainance by several authors, as well as to support auto-generation of html and Adobe Acrobat (pdf) formats of the document. NAT-handling has been improved with a test around RTP proxy enforcement to avoid doing it twice and the handling of an issue with ACKs (without Route header) when using this setup together with Asterisk. Also, the handling of loose routed messages has fixed a security issued where pre-setting a Route header pointing to the PSTN gateway would bypass authentication for INVITE and REFER messages.

Note that this issue is compatible with version 0.9.x of SER and is most likely NOT to work for the latest OpenSER (but probably the 0.9.x of OpenSER). The next issue will be compatible with 0.10.x and new functionality from this forth-coming release will be introduced.