Re: [Sip] Dual registration without Outbound

[Dean Willis <dean.willis at softarmor.com>]

On Oct 6, 2008, at 1:23 AM, Juha Heinanen wrote:

> Erkki.Koivusalo at nokia.com writes:
>
> > But even in that case I can not follow. Yes I see that is possible
> > without Outbound but on the other hand I fail to see Outbound  
> > providing
> > any added value for such a setup.
>
> i'm not claiming that outbound gives any additional value.  it would
> have given if it had forced dual registration when there is two  
> outbound
> proxies in the set.

Outbound-15 4.2.1 says:

For each outbound proxy URI in the set, the UAC SHOULD send a REGISTER  
request using this URI as the default outbound proxy. (Alternatively,  
the UA could limit the number of flows formed to conserve battery  
power, for example). If the set has more than one URI, the UAC MUST  
send a REGISTER request to at least two of the default outbound  
proxies from the set.

As far as I can tell, that means that the UAC must dual register when  
there are two proxies.

Section 3.4 of Outbound, BTW, talks about how to dual-register with  
one registrar WITHOUT outbound.
--
Dean


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