asterisk users - Aug 2009 - Snom Phones Registration/Failover Feature

Hello Mailinglist,

i was reading a paper regarding a Asterisk clustering solution and  
they where pretty excited about a feature in polycom phones:

You can add a registration to a primary asterisk server
You can add a registration to a secondary asterisk server

The polycom phones will talk to the primary server as long as all goes  
well, If they have a problem with an INVITE, they automatically  
register to the secondary asterisk server and start using them. Every  
few seconds (I think it was 30) the phone tries again to register on  
the primary server, if this succeeds, it uses the primary again.

This is in my oppinion a pretty decent way of doing failover (reminds  
me of radius). It beats using Heartbeat and IP Takeover and all the  
hassle you (could) have with this solution.

I was reading in the documentation about the SNOM phones (mainly 300)  
but I did not find anything in the users-pdf's or on there  
knowledgebase/website which would tell me if this is possible, there  
is something for failover configuration but it is not explained at all.

It's highly appreciated if someone with insight could explain to me or  
point me to the right documentation on how/if this works with SNOM's.

Thank you,
best regards

-- 
Raimund Sacherer
-
RunSolutions
    Open Source It Consulting
-

Parc Bit - Centro Empresarial Son Espanyol
Edificio Estel - Local 3D
07121 -  Palma de Mallorca
Baleares

Check out the "Failover Identity" ("Ersatz Identit?t") in
the identity settings. Works a little bit different, but you can achieve the
same effect with this.

CS

-----Urspr?ngliche Nachricht-----
Von: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces
at lists.digium.com] Im Auftrag von Raimund Sacherer
Gesendet: Donnerstag, 13. August 2009 16:16
An: Asterisk Users Mailing List - Non-Commercial Discussion
Betreff: [asterisk-users] Snom Phones Registration/Failover Feature

Hello Mailinglist,

i was reading a paper regarding a Asterisk clustering solution and  
they where pretty excited about a feature in polycom phones:

You can add a registration to a primary asterisk server
You can add a registration to a secondary asterisk server

The polycom phones will talk to the primary server as long as all goes  
well, If they have a problem with an INVITE, they automatically  
register to the secondary asterisk server and start using them. Every  
few seconds (I think it was 30) the phone tries again to register on  
the primary server, if this succeeds, it uses the primary again.

This is in my oppinion a pretty decent way of doing failover (reminds  
me of radius). It beats using Heartbeat and IP Takeover and all the  
hassle you (could) have with this solution.

I was reading in the documentation about the SNOM phones (mainly 300)  
but I did not find anything in the users-pdf's or on there  
knowledgebase/website which would tell me if this is possible, there  
is something for failover configuration but it is not explained at all.

It's highly appreciated if someone with insight could explain to me or  
point me to the right documentation on how/if this works with SNOM's.

Thank you,
best regards

-- 
Raimund Sacherer
-
RunSolutions
    Open Source It Consulting
-

Parc Bit - Centro Empresarial Son Espanyol
Edificio Estel - Local 3D
07121 -  Palma de Mallorca
Baleares


_______________________________________________
-- Bandwidth and Colocation Provided by http://www.api-digital.com --

AstriCon 2009 - October 13 - 15 Phoenix, Arizona
Register Now: http://www.astricon.net

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users

> I was reading in the documentation about the SNOM phones (mainly 300)
> but I did not find anything in the users-pdf's or on there
> knowledgebase/website which would tell me if this is possible, there
> is something for failover configuration but it is not explained at all.
> It's highly appreciated if someone with insight could explain to me or
> point me to the right documentation on how/if this work
Looking at the docs on the Snom Wiki, it would seem that if you set up the
primary server as Server 1, the secondary as Server 2, and set the
"Failover Identity" option on ID1 to ID2, then it should work as you
describe.

I must confess I've never actually tried failover directly from the Snom
phone (instead using Heartbeat/LVS as you suggest), but I see no reason why it
shouldn't "just work".

Regards,

Chris
-- 
For full contact details visit http://www.minotaur.it
This email is made from 100% recycled electrons

Hi Raimund,

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.

 
Regards,
Usman
 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
asterisk-users-request at lists.digium.com
Sent: Thursday, August 13, 2009 4:46 PM
To: asterisk-users at lists.digium.com
Subject: asterisk-users Digest, Vol 61, Issue 34

Send asterisk-users mailing list submissions to
	asterisk-users at lists.digium.com

Date: Thu, 13 Aug 2009 16:10:15 +0200
From: Raimund Sacherer <rs at runsolutions.com>
Subject: [asterisk-users] Snom Phones Registration/Failover Feature
To: Asterisk Users Mailing List - Non-Commercial Discussion
	<asterisk-users at lists.digium.com>
Message-ID: <2760E83D-C16F-43D6-B89D-9FAC2BE55769 at runsolutions.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

Hello Mailinglist,

i was reading a paper regarding a Asterisk clustering solution and  
they where pretty excited about a feature in polycom phones:

You can add a registration to a primary asterisk server
You can add a registration to a secondary asterisk server

The polycom phones will talk to the primary server as long as all goes  
well, If they have a problem with an INVITE, they automatically  
register to the secondary asterisk server and start using them. Every  
few seconds (I think it was 30) the phone tries again to register on  
the primary server, if this succeeds, it uses the primary again.

This is in my oppinion a pretty decent way of doing failover (reminds  
me of radius). It beats using Heartbeat and IP Takeover and all the  
hassle you (could) have with this solution.

I was reading in the documentation about the SNOM phones (mainly 300)  
but I did not find anything in the users-pdf's or on there  
knowledgebase/website which would tell me if this is possible, there  
is something for failover configuration but it is not explained at all.

It's highly appreciated if someone with insight could explain to me or  
point me to the right documentation on how/if this works with SNOM's.

Thank you,
best regards

-- 
Raimund Sacherer
-
RunSolutions
    Open Source It Consulting
-

Parc Bit - Centro Empresarial Son Espanyol
Edificio Estel - Local 3D
07121 -  Palma de Mallorca
Baleares



____________
Virus checked by G DATA AntiVirus
Version: AVF 19.497 dated 13.08.2009
Virus news: www.antiviruslab.com

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!