Seven yes that's somewhat I was thinking, Chris has somewhat opposite of the required.

I've multiple clients connecting to multiple FS-ESL sockets. Clients send just "originate" command and they don't care which FS received the command and what happened with the request. 

All I think about what the ESL-Proxy should do is either send messages to a mentioned FS-Server if user/client specifies else do a round-robin to active FS-ESL sockets.

If anyone has any partial script doing anything like this I'll be happy to modify it according to the requirements and put up for others to use.

Regards,
Sammy




On Tue, Aug 6, 2013 at 12:09 PM, Chris Cachor <ccachor@gmail.com> wrote:
I'm working on a similar setup except that I'm having Freeswitch make a Curl request to a Node.js script with the IP to connect to, and the Node.js script will listen to the incoming request then open a ESL inbound socket connection to the box that requested it. The Node.js script will handle the multiple connection instances (and won't try to connect if it's connected to the machine already). Note: The Node script runs as a daemon. It's a solution that scales with minimal config changes as well.

- Chris

On Aug 6, 2013, at 1:58 PM, freeswitch-users-request@lists.freeswitch.org wrote:

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Today's Topics:

  1. Re: Can not make out going call from sangoma A200 (Ivan)
  2. Re: Do we have ESL-proxy? (Seven Du)

From: Ivan <ivan@c3i.bg>
Subject: Re: [Freeswitch-users] Can not make out going call from sangoma A200
Date: August 6, 2013 12:19:57 PM CDT
Reply-To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>


WRT the callerid issue, do you answer the call immediately ? If yes you should try to wait 2 or 3 rings before answering, since the callerid data is usually sent at the first ring.
There might also be a problem with your provider, did you check first that you get the callerid when plugging a telephone to your provider's line ?

Outgoing call problem: please post more debug from fs_cli (before the hangup).

ivan


On 08/06/2013 09:42 AM, James zhu wrote:
hello:
I contacted Sangoma, but I do not have any feedback yet. I think it
might be a bug
for analog card with freeSWITCH.  freetdm  partially works with sangoma
A200.
There are two issues:
1) Can not get callerid from IO:  only shows this:Initializing cid data!
the callerid is empty
even I set to CN.
2) Can not make outgoing calls by the port that I used to make outgoing
calls. even I replaced a FXO module, the problem is same. I use same
syntax as follow:
http://blog.hiastar.com/?p=276
Hope someone from the FreeSWITCH community to clarify that.

Best regards,
James.zhu
website: www.hiastar.com

------------------------------------------------------------------------
Date: Fri, 2 Aug 2013 23:03:47 -0400
From: bdfoster@davri.com
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] Can not make out going call from sangoma
A200

I apologize, I misread your email. Hopefully someone who knows FreeTDM
will come around. Have you contacted Sangoma? They are the maintainers
of FreeTDM as far as I know. You might try that route. They are very
familiar with freeswitch im sure :).

Thank you,

Brian Foster
Project Manager/Owner's Rep.
Davri Investments, Inc.
O: 317-787-2686 x2102
M: 317-600-9753
E: bdfoster@davri.com <mailto:bdfoster@davri.com>
Indianapolis, Indiana

Sent from a mobile device.

On Aug 2, 2013 10:39 PM, "James zhu" <zhulizhong@live.com
<mailto:zhulizhong@live.com>> wrote:

   thanks, Brian.  actually the 2:1 is idle because the port can accept
   incoming call. after
   I reload freetdm or restart FS, I still can not make outgoing calls.
   If the port physically
   failed, how come I can make incoming call use the same port.
   confused. thanks again.

   Best regards,
   James.zhu
   website: www.hiastar.com <http://www.hiastar.com>

   ------------------------------------------------------------------------
   Date: Fri, 2 Aug 2013 14:22:29 -0400
   From: bdfoster@davri.com <mailto:bdfoster@davri.com>
   To: freeswitch-users@lists.freeswitch.org
   <mailto:freeswitch-users@lists.freeswitch.org>
   Subject: Re: [Freeswitch-users] Can not make out going call from
   sangoma A200

   That's the expected behavior if 2:1 is in use. So that means you use
   another port to place your outbound call. Tips on how to do that,
   however, I can't really produce. Hopefully someone with more
   experience with FreeTDM can chime in.

   Thank you,

   Brian Foster
   Project Manager/Owner's Rep.
   Davri Investments, Inc.
   O: 317-787-2686 x2102
   M: 317-600-9753
   E: bdfoster@davri.com <mailto:bdfoster@davri.com>
   Indianapolis, Indiana

   Sent from a mobile device.

   On Aug 2, 2013 3:09 AM, "James zhu" <zhulizhong@live.com
   <mailto:zhulizhong@live.com>> wrote:

       hello:
       I installed freeswitch and sangoma A200 with 2 FXOs. i set the
       tone group to CN
       and opermode=china. the A200 can make accept incoming calls from
       FreeTDM/2:1 , but I use same port to make out going port, the
       shows the port is CONGESTION.
       --------------------------system
       log-----------------------------------------------
       2013-08-02 14:36:42.003531 [DEBUG] mod_freetdm.c:640 [2:1]
       FreeTDM/2:1/13811737925 CHANNEL HANGUP EXIT
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:48 FreeTDM/2:1/13811737925 Standard
       HANGUP, cause: NORMAL_CIRCUIT_CONGESTION
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:679 (FreeTDM/2:1/13811737925) State
       HANGUP going to sleep
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:692 (FreeTDM/2:1/13811737925)
       Callstate Change DOWN -> HANGUP
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:447 (FreeTDM/2:1/13811737925) State
       Change CS_HANGUP -> CS_REPORTING
       2013-08-02 14:36:42.003531 [DEBUG] switch_core_session.c:1341
       Send signal FreeTDM/2:1/13811737925 [BREAK]
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:416 (FreeTDM/2:1/13811737925)
       Running State Change CS_REPORTING
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:764 (FreeTDM/2:1/13811737925) State
       REPORTING
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:92 FreeTDM/2:1/13811737925 Standard
       REPORTING, cause: NORMAL_CIRCUIT_CONGESTION
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:764 (FreeTDM/2:1/13811737925) State
       REPORTING going to sleep
       2013-08-02 14:36:42.003531 [DEBUG]
       switch_core_state_machine.c:441 (FreeTDM/2:1/13811737925) State
       Change CS_REPORTING -> CS_DESTROY
       2013-08-02 14:36:42.003531 [DEBUG] switch_core_session.c:1341
       Send signal FreeTDM/2:1/13811737925 [BREAK]
       2013-08-02 14:36:42.003531 [DEBUG] switch_core_session.c:1549
       Session 37 (FreeTDM/2:1/13811737925) Locked, Waiting on external
       entities
       2013-08-02 14:36:42.023531 [DEBUG] switch_ivr_originate.c:3632
       Originate Resulted in Error Cause: 34 [NORMAL_CIRCUIT_CONGESTION]
       2013-08-02 14:36:42.023531 [INFO] mod_dptools.c:3192 Originate
       Failed.  Cause: NORMAL_CIRCUIT_CONGESTION
       2013-08-02 14:36:42.023531 [NOTICE] switch_channel.c:4593 Hangup
       sofia/internal/1008@192.168.0.173 <mailto:1008@192.168.0.173>
       [CS_EXECUTE] [NORMAL_CIRCUIT_CONGESTION]
       2013-08-02 14:36:42.023531 [DEBUG] switch_channel.c:3135 Send
       signal sofia/internal/1008@192.168.0.173
       <mailto:1008@192.168.0.173> [KILL]
       2013-08-02 14:36:42.023531 [DEBUG] switch_core_session.c:1341
       Send signal sofia/internal
       ---------------------------------------------
       the FS is download from git and wanpipe is latest version.
         please give a help for that issue.

       Best regards,
       James.zhu
       website: www.hiastar.com <http://www.hiastar.com>


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From: Seven Du <dujinfang@gmail.com>
Subject: Re: [Freeswitch-users] Do we have ESL-proxy?
Date: August 6, 2013 1:57:48 PM CDT
To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>
Reply-To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>


I was actually thinking how to do that. Raw idea would be run a daemon that connects to multiple FS instances and routes ESL requests from a single client accordingly.

FS has core-uuid in events so it can tell which FS it comes from, and api and sendmsg might need to be extended to add the core-uuid so the proxy nows which FS it needs to route to.

Is this what are we talking about? I might do this in Erlang.

-- 
Seven Du

Sent with Sparrow

On Wednesday, August 7, 2013 at 2:00 AM, Nathan Neulinger wrote:

ESL is just a simple TCP socket connection... if all you're wanting to do is rotate between them, there are LOTs of
different solutions. If you're looking for load balancing/calculated assignment of which one to use/etc. then you're
going to need something more advanced.

I'm not aware of any high-level proxy services that do the sort of things described in amiproxy/astmanproxy, but someone
else may be aware of something like it.

-- Nathan

On 08/06/2013 12:57 PM, SamyGo wrote:
Dear Nathan,
Can you refer me some relevant links, this seems more complex solution. I was thinking more like AMIproxy/ AstmanProxy
thing.

BR,
Sammy



On Tue, Aug 6, 2013 at 10:40 AM, Nathan Neulinger <nneul@mst.edu <mailto:nneul@mst.edu>> wrote:

With HAProxy, you could just define a list of target servers. You'd configure your app to talk to the HA IP, and
then each request would go to next available server in the pool you have defined.

You could also simply do a DNS round robin if you wanted. All depends on what infrastructure/etc. you have available
to you and how resilient it needs to be.

-- Nathan


On 08/06/2013 12:38 PM, SamyGo wrote:

Dear Nathan,

I think I've missed something. I don't understand how HAproxy and Floating IP and KeepAlived will help me? I need to
have all Active FS Servers and some mechanism to send ESL commands to them in round-robin fashion. I've an
autodialer
script so that Proxy will help me use many FS Servers at the same time !

Thanks,
Sammy



On Tue, Aug 6, 2013 at 10:22 AM, Nathan Neulinger <nneul@mst.edu <mailto:nneul@mst.edu> <mailto:nneul@mst.edu

You might look at the keepalived page on wiki, that's what I use to float an IP in the case where only one
of the FS
instances should be online.

You could also use HAProxy to define a group of systems for it to talk to if you want multiple to be online
at once,
but rotating between them.

-- Nathan


On 08/06/2013 12:19 PM, SamyGo wrote:

Hi Nathan,

I can only think of Round Robin with failover. I definitely don't want to parallel fork an ESL command.

--
Sammy



On Tue, Aug 6, 2013 at 10:16 AM, Nathan Neulinger <nneul@mst.edu <mailto:nneul@mst.edu>


Are you saying "round robin" or "mirrored" for the commands?

i.e. if you send a command over this proxy, would it be duplicated to all of the FS servers, or
sent to "first
available"?

-- Nathan


On 08/06/2013 12:05 PM, SamyGo wrote:

Dear Users,

I have come up with a requirement to have ESL connection made with multiple FS Servers at the
same time
and send
them
commands(no event receiving is required for now) The connections to FS should be pooled and
monitored
if any FS
goes down.

Is there any ESLproxy available to be used readily?

Thanks,
Sammy


--
------------------------------______--------------------------__--__--


Missouri S&T Information Technology (573) 612-1412
System Administrator - Architect



--
------------------------------____----------------------------__--
Missouri S&T Information Technology (573) 612-1412
System Administrator - Architect



--
------------------------------__------------------------------
Missouri S&T Information Technology (573) 612-1412
System Administrator - Architect

--
------------------------------------------------------------
Nathan Neulinger nneul@mst.edu
Missouri S&T Information Technology (573) 612-1412
System Administrator - Architect

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