[Freeswitch-users] FS priority

Sergey Safarov s.safarov at gmail.com
Wed Oct 7 15:28:44 MSD 2015 

It can be made via "sudo" or may be configured via permission.

On Wed, Oct 7, 2015 at 2:23 PM, Stanislav Sinyagin <ssinyagin at gmail.com>
wrote:

> yes, because it's not only about the priority. FreeSWITCH also tries to
> set a real-time scheduler, and that requires root privileges.
>
>
>
> On Wed, Oct 7, 2015 at 1:08 PM, Sergey Safarov <s.safarov at gmail.com>
> wrote:
>
>> It is PR give FS root priviledges at startup.
>> I will create PR where FS start in unpriveledged mode
>>
>> https://freeswitch.org/stash/projects/FS/repos/freeswitch/pull-requests/542/overview
>>
>> On Wed, Oct 7, 2015 at 2:01 PM, Stanislav Sinyagin <ssinyagin at gmail.com>
>> wrote:
>>
>>> there is already a pull request that sets already the proper priority
>>>
>>> On Wed, Oct 7, 2015 at 9:37 AM, Sergey Safarov <s.safarov at gmail.com>
>>> wrote:
>>>
>>>> Nice level can be setted in
>>>> - systemd unit file (Nice directive
>>>> http://www.freedesktop.org/software/systemd/man/systemd.exec.html)
>>>> - init.d file (nice command)
>>>>
>>>> I can create pull request for this changes. Can any body say used by FS
>>>> nice level and other priority parameters?
>>>>
>>>> Sergey
>>>>
>>>> On Tue, Oct 6, 2015 at 6:53 AM, Sergey Safarov <s.safarov at gmail.com>
>>>> wrote:
>>>>
>>>>> What is proliority must be used?
>>>>>
>>>>> On Mon, Oct 5, 2015, 21:13 Stanislav Sinyagin <ssinyagin at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> in the current freeswitch.service, freewitch is started under
>>>>>> freeswitch UID, and as a result, it fails to set itself to the proper
>>>>>> priority.
>>>>>>
>>>>>> On Mon, Oct 5, 2015 at 7:13 PM, Brian West <brian at freeswitch.org>
>>>>>> wrote:
>>>>>>
>>>>>>> "Now the daemon starts as root and switches to freewitch UID." is
>>>>>>> how its always done it.
>>>>>>>
>>>>>>> On Mon, Oct 5, 2015 at 10:27 AM, Stanislav Sinyagin <
>>>>>>> ssinyagin at gmail.com> wrote:
>>>>>>>
>>>>>>>> see
>>>>>>>> https://freeswitch.org/stash/projects/FS/repos/freeswitch/pull-requests/542/overview
>>>>>>>>
>>>>>>>> it was a bit nontrivial because freeswitch.service was installed in
>>>>>>>> an unusual way. Now the daemon starts as root and switches to freewitch UID.
>>>>>>>>
>>>>>>>> Still unresolved is https://freeswitch.org/jira/browse/FS-7937
>>>>>>>> The package installer starts the daemon, but does not enable the
>>>>>>>> service for starting at boot.
>>>>>>>> I will dig into that after the merge.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sun, Sep 6, 2015 at 6:24 PM, Bote Man <bote_radio at botecomm.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> I agree IFF my assumptions and results are applicable to package
>>>>>>>>> installations. If you have a package installation I would prefer that you
>>>>>>>>> verify these results on such an installation since I mostly let my Master
>>>>>>>>> build do what it wants. I always build from Master, never use the packages.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Do we have to specify the –run runtime directory on the FS command
>>>>>>>>> line?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Do we have to specify the –temp files directory?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Right now the unit file for the package specifies none of those so
>>>>>>>>> I don’t know where FS would put its runtime and temp files.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> By the way, while testing the location of runtime directory for
>>>>>>>>> the PID file I noted that FS will create the ./run directory with the
>>>>>>>>> proper permissions and owner, then write the PID file in it on its own
>>>>>>>>> without systemd doing it. This happened without specifying anything about
>>>>>>>>> that on the command line and without the tmpfiles.d entry.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> But since the .deb package places files in the FHS locations this
>>>>>>>>> would be necessary, so your recent ticket that adds that applies. I omitted
>>>>>>>>> that from my Confluence instructions built from Master, FYI.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Please let me know how to proceed.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Bote
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> *From:* Stanislav Sinyagin
>>>>>>>>> *Sent:* Sunday, 06 September, 2015 06:00
>>>>>>>>>
>>>>>>>>> *Subject:* Re: [Freeswitch-users] FS priority
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Looks like another jira ticket is needed for Debian packaging.
>>>>>>>>>
>>>>>>>>> On Sep 6, 2015 6:16 AM, "Anthony Minessale" <
>>>>>>>>> anthony.minessale at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>> It's because FS changes the scheduler and enables some realtime
>>>>>>>>> threads when it can.  If you have multiple cpu np and rp are the same.  FS
>>>>>>>>> always needs root privs to change the platform parameters and nice level
>>>>>>>>> etc.  The scheduler change is not possible if the shell is an unpriveledged
>>>>>>>>> user nor are a bunch of other things unless you carefully allowed them
>>>>>>>>> somehow as root before the shell started.  So basically that is all
>>>>>>>>> expected behavior.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Saturday, September 5, 2015, Bote Man <bote_radio at botecomm.com>
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> Sorry, I did not use the utility named ‘runas’ I simply labeled
>>>>>>>>> the column that way and was trying to conserve character space in the
>>>>>>>>> header to get it to fit in a reasonable space.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Anyway, thanks to your post and some research I just changed my
>>>>>>>>>  FS unit file to start FS as user root, but specified –u freeswitch –g
>>>>>>>>> freeswitch on the command line to FS, and changed the
>>>>>>>>> WorkingDirectory=/usr/local/freeswitch/bin (it had been set to ‘run’) and
>>>>>>>>> it’s doing the Right Thing, so that is what I will go with. I vaguely
>>>>>>>>> remember that FS can (should) start as root, then drops privileges to what
>>>>>>>>> is specified on the command line, so it looks like it is doing exactly that.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ‘top’ shows FS running as real and effective user ‘freeswitch’
>>>>>>>>> with Priority=-2 and Nice=-10 so I am a happy camper.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> If nobody on the FS core development team has any objection to
>>>>>>>>> this approach I will update the Confluence page for the systemd unit file
>>>>>>>>> for building from MASTER. The Debian packages have their own file locations.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> https://freeswitch.org/confluence/display/FREESWITCH/FreeSWITCH+1.6+Video#FreeSWITCH1.6Video-systemd
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Any security concerns doing this?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks!
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Bote
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> *From:* Shaun Stokes
>>>>>>>>> *Sent:* Saturday, 05 September, 2015 03:18
>>>>>>>>> *Subject:* Re: [Freeswitch-users] FS priority
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Are you using FreeSwitch to specify the user to runas or is this
>>>>>>>>> being done by systemd?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> In FreeSwitch you use the -u argument to specify the user and the
>>>>>>>>> -g argument to specify the group, if you do this then I assume running the
>>>>>>>>> service as root should be ok providing you've given FreeSwitch an
>>>>>>>>> alternative user and group (in our environment we use the same for user and
>>>>>>>>> group).
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>>
>>>>>>>>> Shaun
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ------------------------------
>>>>>>>>>
>>>>>>>>> *From:* Bote Man
>>>>>>>>> *Sent:* 05 September 2015 04:28
>>>>>>>>> *Subject:* Re: [Freeswitch-users] FS priority
>>>>>>>>>
>>>>>>>>> I'm not sure how much nice level matters compared to scheduler
>>>>>>>>> priority. I ran a series of tests to find out what Priority and Nice level
>>>>>>>>> are reported by the 'top' utility.
>>>>>>>>>
>>>>>>>>> I ran the first 6 tests by using systemd to start FreeSWITCH, 3
>>>>>>>>> times as user root with each of the FS priority flags, then 3 times as user
>>>>>>>>> freeswitch with each of the FS flags. Then I repeated that block of tests
>>>>>>>>> from the command line, 3 flags as root, 3 flags as freeswitch. You won't
>>>>>>>>> believe what happened next!
>>>>>>>>>
>>>>>>>>> systemd starting FreeSWITCH as 'RUNAS' user with 'FLAG' command
>>>>>>>>> line priority flags to FS results in top showing priority 'PRI', nice level
>>>>>>>>> 'NICE' on a month-old install of Debian 8 on a bare metal Dell R320 server.
>>>>>>>>>
>>>>>>>>> RUNAS    FLAG    PRI    NICE
>>>>>>>>> root         -rp         -2      -10
>>>>>>>>> root        -np         39      19
>>>>>>>>> root         -lp         39      19
>>>>>>>>>
>>>>>>>>> fs            -rp         -2       19
>>>>>>>>> fs            -np        39      19
>>>>>>>>> fs            -lp         39      19
>>>>>>>>>
>>>>>>>>> Run as root from command line
>>>>>>>>> root         -rp         -2     -10
>>>>>>>>> root         -np        20      0
>>>>>>>>> root         -lp         39     19
>>>>>>>>>
>>>>>>>>> Run as su=freeswitch from command line
>>>>>>>>> fs            -rp        20      0
>>>>>>>>> fs            -np       20      0
>>>>>>>>> fs            -lp        39     19
>>>>>>>>>
>>>>>>>>> Most processes show Priority of 20 so I assume that is considered
>>>>>>>>> "normal".
>>>>>>>>>
>>>>>>>>> So it looks like the only way to get truly higher priority for a
>>>>>>>>> process is to run it as root, which I expected. Once the scheduler priority
>>>>>>>>> is at -2 (higher priority) I don't know whether the nice level even matters.
>>>>>>>>>
>>>>>>>>> For now, the systemd unit file that I posted on Confluence runs as
>>>>>>>>> the freeswitch user so even with the -rp flag to FreeSWITCH it gets niced
>>>>>>>>> down to 19 which is the lowest level available for nice. Does this matter?
>>>>>>>>>
>>>>>>>>> Is there a serious security concern running FreeSWITCH as root?
>>>>>>>>>
>>>>>>>>> Thanks.
>>>>>>>>>
>>>>>>>>> Bote
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Fri, Sep 4, 2015 at 3:38 PM, Bote Man <bote_radio at botecomm.com>
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> Thanks for that. I was under the impression that systemd was
>>>>>>>>> throwing FreeSWITCH into the generic scheduling group and starving it of
>>>>>>>>> resources as a result, but when I manually ran ./freeswitch as root it
>>>>>>>>> still showed the same values.
>>>>>>>>>
>>>>>>>>> Running FS manually with -np yielded pri=20 nice=0 and System
>>>>>>>>> Monitor reports priority "normal"
>>>>>>>>>
>>>>>>>>> Running FS manually with -rp yielded pri=-2 nice=-10 and System
>>>>>>>>> Monitor reports priority "very high", same results as when FS was started
>>>>>>>>> without any priority switch on the command line.
>>>>>>>>>
>>>>>>>>> BUT! When I start FS with systemd it maintains priority=-2 but
>>>>>>>>> nice all the way down to 19 which is why System Monitor reports "very low".
>>>>>>>>> This happens even with the -rp switch specified in the unit file.
>>>>>>>>>
>>>>>>>>> I don't know how scheduling priority and nice level interact on
>>>>>>>>> Debian, but it looks like I have a new research project for this weekend,
>>>>>>>>> assuming this is truly something to be concerned about. Or is it?
>>>>>>>>>
>>>>>>>>> Thanks for the tips. I will report my findings to the list if I
>>>>>>>>> discover anything substantive.
>>>>>>>>>
>>>>>>>>> Bote
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Fri, Sep 4, 2015 at 2:02 PM, Shaun Stokes <
>>>>>>>>> shaun.stokes at itec-support.co.uk> wrote:
>>>>>>>>>
>>>>>>>>> Hi Bote,
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> I believe priority works in a similar way to metric (i.e. lower
>>>>>>>>> comes first), so -20 (most favorable scheduling) to +19 (least favorable
>>>>>>>>> scheduling).
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> -rp                    -- enable high(realtime) priority settings
>>>>>>>>>
>>>>>>>>> -lp                    -- enable low priority settings
>>>>>>>>>
>>>>>>>>> -np                    -- enable normal priority settings (system default)
>>>>>>>>>
>>>>>>>>> Source: https://wiki.freeswitch.org/wiki/Command_line
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Hope this helps.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>>
>>>>>>>>> Shaun
>>>>>>>>> ------------------------------
>>>>>>>>>
>>>>>>>>> *From:* freeswitch-users-bounces at lists.freeswitch.org [
>>>>>>>>> freeswitch-users-bounces at lists.freeswitch.org] on behalf of Bote
>>>>>>>>> Man [bote_radio at botecomm.com]
>>>>>>>>> *Sent:* 04 September 2015 15:54
>>>>>>>>> *To:* FreeSWITCH Users Help
>>>>>>>>> *Subject:* [Freeswitch-users] FS priority
>>>>>>>>>
>>>>>>>>> I’m trying to set the priority on a new FreeSWITCH installation
>>>>>>>>> built from master on Debian 8 running on bare metal. It is currently
>>>>>>>>> running at “very low” priority according to Resource Monitor in the GUI and
>>>>>>>>> ‘top’ reports FS is running at priority = -2 (that’s negative two) and nice
>>>>>>>>> = 19
>>>>>>>>>
>>>>>>>>> So with the way FreeSWITCH is now launched by systemd is it
>>>>>>>>> considered a service or a user application that is simply run in the
>>>>>>>>> background?
>>>>>>>>>
>>>>>>>>> This affects how systemd treats its control groups and priority
>>>>>>>>> and how I will go about troubleshooting this.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Bote
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>>>>>>>>> http://twitter.com/FreeSWITCH
>>>>>>>>>
>>>>>>>>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>>>>>>>>> <http://freeswitch.org/g+>*
>>>>>>>>>
>>>>>>>>> ClueCon Weekly Development Call
>>>>>>>>>
>>>>>>>>> ☎ sip:888 at conference.freeswitch.org  ☎ +19193869900
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> https://www.youtube.com/watch?v=9XXgW34t40s
>>>>>>>>>
>>>>>>>>> https://www.youtube.com/watch?v=NLaDpGQuZDA
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _________________________________________________________________________
>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>> consulting at freeswitch.org
>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>
>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>> http://www.freeswitch.org
>>>>>>>>> http://confluence.freeswitch.org
>>>>>>>>> http://www.cluecon.com
>>>>>>>>>
>>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>>> UNSUBSCRIBE:
>>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _________________________________________________________________________
>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>> consulting at freeswitch.org
>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>
>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>> http://www.freeswitch.org
>>>>>>>>> http://confluence.freeswitch.org
>>>>>>>>> http://www.cluecon.com
>>>>>>>>>
>>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>>> UNSUBSCRIBE:
>>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _________________________________________________________________________
>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>> consulting at freeswitch.org
>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>
>>>>>>>> Official FreeSWITCH Sites
>>>>>>>> http://www.freeswitch.org
>>>>>>>> http://confluence.freeswitch.org
>>>>>>>> http://www.cluecon.com
>>>>>>>>
>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>> UNSUBSCRIBE:
>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>> http://www.freeswitch.org
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> *Brian West*
>>>>>>> brian at freeswitch.org
>>>>>>>
>>>>>>>
>>>>>>> *Twitter: @FreeSWITCH , @briankwest*
>>>>>>> http://www.freeswitchbook.com
>>>>>>> http://www.freeswitchcookbook.com
>>>>>>>
>>>>>>> Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit:
>>>>>>> /r/freeswitch <https://www.reddit.com/r/freeswitch>
>>>>>>>
>>>>>>> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
>>>>>>> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>>>>>>>
>>>>>>>
>>>>>>> _________________________________________________________________________
>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>> consulting at freeswitch.org
>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>
>>>>>>> Official FreeSWITCH Sites
>>>>>>> http://www.freeswitch.org
>>>>>>> http://confluence.freeswitch.org
>>>>>>> http://www.cluecon.com
>>>>>>>
>>>>>>> FreeSWITCH-users mailing list
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>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>> UNSUBSCRIBE:
>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>> http://www.freeswitch.org
>>>>>>>
>>>>>>
>>>>>>
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> http://www.freeswitchsolutions.com
>>>>>>
>>>>>> Official FreeSWITCH Sites
>>>>>> http://www.freeswitch.org
>>>>>> http://confluence.freeswitch.org
>>>>>> http://www.cluecon.com
>>>>>>
>>>>>> FreeSWITCH-users mailing list
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>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>> UNSUBSCRIBE:
>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>> http://www.freeswitch.org
>>>>>
>>>>>
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://confluence.freeswitch.org
>>>> http://www.cluecon.com
>>>>
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>>>>
>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://confluence.freeswitch.org
>>> http://www.cluecon.com
>>>
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>>>
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
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>> http://www.freeswitch.org
>>
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
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