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[asterisk-users] load balancing SIP extensions

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rentorbuy at yahoo.com
Guest

Posted: Fri Feb 22, 2008 6:42 am Post subject: [asterisk-users] load balancing SIP extensions

What I would like to do is have two identical * servers which accept registrations of sip extensions 4000-4999. If I define a rrDNS or LinuxHA then I should have load-balanced registrations. However, say ext. 4001 is registered on 1 and 4002 is registered on 2, if 4001 tries to call 4002 then I would like to do something like: - lookup 4002 on 1, try to establish a call if it's REGISTERED here - if it's not registered here then try to look it up on 2 and establish the call there I tried to use DUNDi on my local servers but I can't seem to make it work. Most howtos out there explain the use of DUNDi when the extension ranges do not overlap. So in my case where both 1 and 2 have the same local extension range 4XXX, can I go the DUNDi route or should I stop bashing my head on that and explore another solution? If someone has configured a similar system then I'd greatly appreciate some tips. I read a few dundi docs like http://www.voip-info.org/wiki-DUNDi. Thanks ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

gandresin at gmail.com
Guest

Posted: Fri Feb 22, 2008 7:02 am Post subject: [asterisk-users] load balancing SIP extensions

On Fri, Feb 22, 2008 at 11:42 AM, Vieri <rentorbuy at yahoo.com> wrote:

Quote:

However, say ext. 4001 is registered on *1 and 4002 is
registered on *2, if 4001 tries to call 4002 then I
would like to do something like:
- lookup 4002 on *1, try to establish a call if it's
REGISTERED here
- if it's not registered here then try to look it up
on *2 and establish the call there

You can do that using the dial plan.

- Create an IAX link between both servers
- DIal plan in both servers:
First priority Dial using SIP/EXTEN
Second priority IAX/EXTEN

Dial IAX/EXTEN

--
Andres Jimenez

GPG : http://www.andresin.com/gpg/gandresin at gmail.com.asc

YEHAVI at VMS.HUJI.AC.IL
Guest

Posted: Fri Feb 22, 2008 12:44 pm Post subject: [asterisk-users] load balancing SIP extensions

Quote:

I've tried doing something similar and came with two options. The common to
them is that I use MySQL for realtime extensions, and set "systemname"
parameter to the IP address of the server where the phone registers.

When a call arrives I check whether the REGSERVER coloumn is the same as the
local server or not. If not, then there are two options:

- Pass the call via IAX to the other servers; this makes both server process
the call and the audio.

- Send a "refer" message to the caller to contact the other server.

I had this working in the lab but not in production yet. If you want the
dialplan code for this then email me.

__Yehavi:

rentorbuy at yahoo.com
Guest

Posted: Fri Feb 22, 2008 12:49 pm Post subject: [asterisk-users] load balancing SIP extensions

--- Andres Jimenez <gandresin at gmail.com> wrote:

Quote:

On Fri, Feb 22, 2008 at 11:42 AM, Vieri
<rentorbuy at yahoo.com> wrote:

Quote:

However, say ext. 4001 is registered on *1 and

4002 is

Quote:

registered on *2, if 4001 tries to call 4002 then

Quote:

would like to do something like:
- lookup 4002 on *1, try to establish a call if

it's

Quote:

REGISTERED here
- if it's not registered here then try to look it

Quote:

on *2 and establish the call there

You can do that using the dial plan.

- Create an IAX link between both servers
- DIal plan in both servers:
First priority Dial using SIP/EXTEN
Second priority IAX/EXTEN Dial IAX/EXTEN

gandresin at gmail.com
Guest

Posted: Fri Feb 22, 2008 2:11 pm Post subject: [asterisk-users] load balancing SIP extensions

On Fri, Feb 22, 2008 at 5:49 PM, Vieri <rentorbuy at yahoo.com> wrote:

Quote:

--- Andres Jimenez <gandresin at gmail.com> wrote:

Quote:

On Fri, Feb 22, 2008 at 11:42 AM, Vieri
<rentorbuy at yahoo.com> wrote:

Quote:

However, say ext. 4001 is registered on *1 and

4002 is

Quote:

registered on *2, if 4001 tries to call 4002 then

Quote:

would like to do something like:
- lookup 4002 on *1, try to establish a call if

it's

Quote:

REGISTERED here
- if it's not registered here then try to look it

Quote:

on *2 and establish the call there

You can do that using the dial plan.

- Create an IAX link between both servers
- DIal plan in both servers:
First priority Dial using SIP/EXTEN
Second priority IAX/EXTEN Dial IAX/EXTEN

Thanks. I'll try that although I hope it won't go into
an infinite loop between the 2 servers.

____________________________________________________________________________________
Looking for last minute shopping deals?
Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

_______________________________________________

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--
Andres Jimenez

GPG : http://www.andresin.com/gpg/gandresin at gmail.com.asc

gandresin at gmail.com
Guest

Posted: Fri Feb 22, 2008 2:19 pm Post subject: [asterisk-users] load balancing SIP extensions

On Fri, Feb 22, 2008 at 5:49 PM, Vieri <rentorbuy at yahoo.com> wrote:

Quote:

Thanks. I'll try that although I hope it won't go into
an infinite loop between the 2 servers.

You are right. That could happen if the phone is not registered anywhere

You can put some security in the dialplan.
if calls comes from IAX it means that PHONE is not registered in the
other server.
Just create special extensions to take the IAX calls (instead of GoTo):

PHONE is 101

SERVER 1

exten => 101,1, Dial SIP/101
exten => 101,1, Dial IAX-SERVER2/55101

exten => 55101,1, Dial SIP/101
exten => 55101,1, Hangup

SERVER 2

exten => 101,1, Dial SIP/101
exten => 101,1, Dial IAX-SERVER1/55101

exten => 55101,1, Dial SIP/101
exten => 55101,1, Hangup

I hope it helps,

--
Andres Jimenez

GPG : http://www.andresin.com/gpg/gandresin at gmail.com.asc

anthonyf at rockynet.com
Guest

Posted: Sat Feb 23, 2008 6:46 am Post subject: [asterisk-users] load balancing SIP extensions

Vieri wrote:

Quote:

What I would like to do is have two identical *
servers which accept registrations of sip extensions
4000-4999.

If I define a rrDNS or LinuxHA then I should have
load-balanced registrations.

However, say ext. 4001 is registered on *1 and 4002 is
registered on *2, if 4001 tries to call 4002 then I
would like to do something like:
- lookup 4002 on *1, try to establish a call if it's
REGISTERED here
- if it's not registered here then try to look it up
on *2 and establish the call there

I tried to use DUNDi on my local servers but I can't
seem to make it work. Most howtos out there explain
the use of DUNDi when the extension ranges do not
overlap.
So in my case where both *1 and *2 have the same local
extension range 4XXX, can I go the DUNDi route or
should I stop bashing my head on that and explore
another solution?

If someone has configured a similar system then I'd
greatly appreciate some tips.
I read a few dundi docs like
http://www.voip-info.org/wiki-DUNDi.

Thanks

____________________________________________________________________________________
Looking for last minute shopping deals?
Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

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

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

Have you tried placing the sip registrations in a db using realtime?

rentorbuy at yahoo.com
Guest

Posted: Sat Feb 23, 2008 2:28 pm Post subject: [asterisk-users] load balancing SIP extensions

--- Anthony Francis <anthonyf at rockynet.com> wrote:

Quote:

Have you tried placing the sip registrations in a db
using realtime?

I'm not that sure I want to use realtime because I
would then depend on the sql service never failing (I
could use clustered active-active MySQL but that
sounds overkill, or maybe not).

I'll take a look at the pdf link of the previous post.

Thanks

____________________________________________________________________________________
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