[SR-Users] Kamailio 5.0 - B2BUA

[Alex Balashov]

On 03/03/2016 03:02 PM, Juha Heinanen wrote:

> Would the proposed B2BUA be based on dialog module?

I am not sure the 'dialog' module would be of much help here, prima 
facie, but it's certainly possible that some aspect of its dialog state 
machine could be borrowed for a UA dialog layer. It would stand to 
reason that if TM can provide the UAC transaction layer, as it already 
does in limited cases for the 'uac' module, then 'dialog' can provide 
the dialog layer.

> If so, I remember a few years ago that there were some fundamental
> problems with dialog module and it was proposed to design a new
> dialog-ng module.  I haven't followed what (if anything) happened.

The module exists in parallel, but seems to be used only by the IMS 
folks, and designed in a manner complementary to IMS:

http://kamailio.org/docs/modules/4.3.x/modules/dialog_ng.html

> Would the proposed B2BUA also include SBC style features, such as
> limiting simultaneous calls, call times, etc?

My proposal would be to limit the ambitions of such a module as much as 
possible, in order to make its implementation more likely. :-)

-- Alex

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