In mode 3 FS does not handle the media for any of those things you have to depend on a secondary system running FS or some other platform to do those things. Even in mode 3 FS is not a SIP proxy it is still a B2BUA but does nothing with the media simply directs it to where you want it handled
When I mentioned clustering it together I was speaking strictly horizontal scalability using a DB to share information between the servers such as registered end points etc... This be accomplished in several different ways it really depends on what exactly you are trying to accomplish. For that particular setup it was a very large call center with dozens of SIP aware machines behind the FS boxes handling the IVRs, call recording and call distribution.
Ken
From: Jerry Richards <jerry.richards@teotech.com>
Reply-To: "freeswitch-dev@lists.freeswitch.org" <freeswitch-dev@lists.freeswitch.org>
Date: Thu, 27 Aug 2009 14:03:29 -0700
To: <freeswitch-dev@lists.freeswitch.org>
Cc: Steve Hill <steve.hill@teotech.com>, Joe Billey <joe.billey@teotech.com>, Richard Lee <richard.lee@teotech.com>, Thomas Beck <thomas.beck@teotech.com>
Subject: Re: [Freeswitch-dev] Scalabilty of Freeswitch
Okay. I got two replies from Shelby R. and Ken R. I presume these two answers do not conflict? I gather from these replies is that FS has 3 modes: 1) FS is a complete stand-alone system (i.e. FS interacts with media stream), 2) FS is a media_proxy (i.e. FS simply receives/transmits media but does not process it), 3) FS is in bypass media mode where FS tells both endpoints to send media directly to each other (i.e. no media handling packet handling at all).
In mode 3), How do the IVR, Voice Mail, Eavesdropping, MOH and central conferencing features work? Would it use an external media server(s)?
Also, Ken you mentioned "clusters". What is a cluster? What system(s) are you running the 20K concurrent calls at 2000 calls/sec rate? Which of the three modes are you running the server when recording these statistics?
Thanks and Best Regards,
Jerry
From: Ken Rice [mailto:krice@freeswitch.org]
Sent: Thursday, August 27, 2009 9:31 AM
To: freeswitch-dev@lists.freeswitch.org
Subject: Re: [Freeswitch-dev] Scalabilty of Freeswitch
It is possible to do such a think via a number of mechanisms. Remember FS can operate in 3 modes, standard mode where we can do transcoding and interact with the media stream, or proxy_media mode where we just proxy the media packet in packet out, and bypass_media mode where we tell the end points to send the media directly to each other.
This allows for some interesting scalability (we have clusters running in excess of 20K concurrent calls at call rates in excess of 2000 calls/sec)
From: Jerry Richards <jerry.richards@teotech.com>
Reply-To: "freeswitch-dev@lists.freeswitch.org" <freeswitch-dev@lists.freeswitch.org>
Date: Thu, 27 Aug 2009 08:45:30 -0700
To: <freeswitch-dev@lists.freeswitch.org>
Subject: Re: [Freeswitch-dev] Scalabilty of Freeswitch
Also on a related issue (since I am a novice to Freeswitch), regardless of statistics on number of extensions per system per configuration, I had a more general question:
That is, does Freeswitch allow for distribution of loading (e.g. supports interface to media servers running on separate machines)? Also, I imagine the SIP signaling part must always be a standalone machine that manages all extensions?
Best Regards,
Jerry
From: Mindaugas Kezys [mailto:mkezys@gmail.com]
Sent: Wednesday, August 26, 2009 10:38 PM
To: freeswitch-dev@lists.freeswitch.org
Subject: Re: [Freeswitch-dev] Scalabilty of Freeswitch
Maybe it would be a good idea to create wiki page just to put such kind of information in a table:
Computer specs | Other comments | Codecs used | With/Without Media | Max sim. calls reached | etc
That way interested persons could get a grasp what is really all about.
This is very common question based on which many people measure switch capabilities, so in my opinion should be treated with that in mind (as marketing oportunity)
Regards,
Mindaugas Kezys
http://www.kolmisoft.com
VoIP Billing and Routing Solutions
From: freeswitch-dev-bounces@lists.freeswitch.org [mailto:freeswitch-dev-bounces@lists.freeswitch.org] On Behalf Of Michael Collins
Sent: 2009 m. rugpj?čio 26 d. 23:36
To: freeswitch-dev@lists.freeswitch.org
Subject: Re: [Freeswitch-dev] Scalabilty of Freeswitch
This question sounds eerily familiar...
On Wed, Aug 26, 2009 at 1:15 PM, Jerry Richards <jerry.richards@teotech.com> wrote:
Hello All,
Does anyone know what the capacity of a stand-alone Freeswitch (assuming a
top-of-the-line server), in terms of how many users?
You can have many hundreds of users, but there are a lot of factors: network infrastructure, call volume, etc.
Also, when that number is exceeded, how can Freeswitch server be distributed
to accommodate a larger installation?
Yes there are strategies. You definitely want a professional to assist if this is a serious production environment. There are members of the FS community who do this sort of thing, or you could email consulting@freeswitch.org to get assistance from the core FS developers.
-MC
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