[asterisk-users] Snom Phones Registration/Failover Feature

[Raimund Sacherer]

On Aug 13, 2009, at 6:24 PM, Usman Tahir wrote:

> Hi Raimund,
Hello,

>
> snom uses basically the same concept. As explained under:
> http://wiki.snom.com/Settings/user_failover_identity.
>
> You select the line id that should be used when a registration fails.
thank you for the link, as a matter of fact I was reading this but it  
is not very clear to me:

--- QUOTE ---

Settings/user failover identity
Settings
	• Web User Interface:
		• V7: Identities - Login Information(Section): Failover Identity
		• V8: Identities - Login Information(Section): Failover Identity
	• Description: This identity will be used as a backup for failover  
i.e. if the current identity is not registered, this identity is used  
instead.
	• Valid values: none, 1, 2,3....x (Max. No. of lines i.e. 4 or 12)
	• Default value: none

--- QUOTE ---

It does tell that failover is used if the first identity is not  
registered, however, HOW is this detected, what does NOT REGISTERED  
mean? Will it be detected if the first is registered, but the server  
goes down? The phone will find in this case that an INVITE is not  
working, will this trigger as well a switchover?

How does the (if at all) failback work? Is it trying to register to  
the first Identity in intervals? Will it just stay with the second  
Identity?

I was hoping someone can explain to me how this will work :-) It is  
very tiresome trying to find out this sort of thing with trial/error  
and sniffing around.

>
>
> Regards,
> Usman
best regards as well!