[Serusers] SER + B2BUA

[Alex Bligh]

--On 30 March 2004 10:47 +0200 Klaus Darilion 
<klaus.mailinglists at pernau.at> wrote:

>> Perhaps I am missing something, but why not either
>> a) The media gateway, or
>
> Are there gateways which can tear down active calls on bevave of some
> other component?

Cisco can tear down on (for instance) lack of rtp/rtcp.

>> b) Assuming you have a stateful proxy, the proxy server (with suitable
>>   hackery) - how would the UA/proxy upstream/downstream from the proxy
>>   *know* if the proxy really received a BYE, or just faked one up? So
>>   if you send one BYE in each direction, you get two ACK packets produced
>>   which would perhaps confuse their final recipient, except the proxy
>>   server will eat them.
>
> You would need a call staful proxy (ser is only transaction stateful).
> The proxy would have to generate the BYE messages - so per definition -
> it is no more a proxy, because proxies don't generate requests on their
> own, they just forward requests. So this thing must be called B2BUA.

I know proxies don't *normally* do this, I just can't see why it wouldn't
work if one did (if the requirement is only to produce a BYE). Whatever
you end up calling it.

Alex