[Freeswitch-users] Choppy VM when using loopback (on Debian lenny)

Anthony Minessale anthony.minessale at gmail.com
Thu Feb 3 22:14:25 MSK 2011 

you can just call sofia/profilename/ext@<local ip> even when its the
same profile.


On Thu, Feb 3, 2011 at 1:06 PM, Dmitry Sytchev <kbdfck at gmail.com> wrote:
> Yes, I also had this idea, but I thought it would lead to troubles
> with loop detection.
> How this can be done exactly? I need separate profiles for this? Or I
> just can dial from internal to internal?
>
> And what if I use Kamailio in front of FS? Then need to deal with call
> re-routing to kamailio. I thought it may lead to spiral detection, if
> I understand right what spiral is.
>
> 2011/2/3 Anthony Minessale <anthony.minessale at gmail.com>:
>> maybe, but using loopback without the bowout is very costly.
>> you can also consider hair-pinning a call back to your own box over
>> SIP for this type of thing.
>>
>>
>> On Thu, Feb 3, 2011 at 12:28 PM, Dmitry Sytchev <kbdfck at gmail.com> wrote:
>>> Thanks, I will test tomorrow.
>>>
>>> I'm wondering if I could use att_xfer with loopbacks after these patches:D
>>>
>>> 2011/2/3 Anthony Minessale <anthony.minessale at gmail.com>:
>>>> commit fb66abfab4a74055c38cdc67da83e6e0175a4a0b
>>>> Author: Anthony Minessale <anthm at freeswitch.org>
>>>> Date:   Tue Feb 1 16:22:36 2011 -0600
>>>>
>>>> this is the one you need at a bare minimum.
>>>>
>>>> If you are still having problems the most likely cause is ptime
>>>> mismatch between the 2 ends of the call.
>>>> you cannot leave loopback in the call path when the legs are not on
>>>> the same ptime with very good results.
>>>>
>>>>
>>>> On Thu, Feb 3, 2011 at 4:31 AM, Dmitry Sytchev <kbdfck at gmail.com> wrote:
>>>>> We faced same trouble with FreeSWITCH Version 1.0.head (git-33848eb
>>>>> 2011-02-01 08-56-26 +0100), the problem persists with loopback
>>>>> channels. Even if two sip endpoints are bridged via loopback, sound is
>>>>> choppy.
>>>>>
>>>>> We have bridge_early_media=true on loopback channel bridge command and
>>>>> loopback_bowout=false, loopback_bowout_on_execute=false
>>>>>
>>>>> 2011/2/2 Dan Lane <null at invalid.name>:
>>>>>> This seems to have resolved the issue for us :)
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>> On Tue, Feb 1, 2011 at 8:47 PM, Anthony Minessale
>>>>>> <anthony.minessale at gmail.com> wrote:
>>>>>>> Try the latest GIT, I reverted the last patch and tried to solve the
>>>>>>> problem differently.
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Feb 1, 2011 at 2:11 PM, Dan Lane <null at invalid.name> wrote:
>>>>>>>> Yes, using 1f1541b our calls that use mod_loopback into mod_conference
>>>>>>>> are unusable. The audio is choppy and delay increases as time passes.
>>>>>>>>
>>>>>>>> I thought it was an issue relating to the default 100Hz kernel on EC2
>>>>>>>> so I spent some time yesterday putting together a 1000Hz kernel but it
>>>>>>>> didn't make any difference. In the meantime I've compiled mod_loopback
>>>>>>>> from 4c5426f and loaded it with my 1f1541b build which eliminates the
>>>>>>>> issue.
>>>>>>>>
>>>>>>>> I haven't added it to Jira yet as I want to spend some time debugging
>>>>>>>> it (and I also owe you some debug info for FS-2934) but the problem is
>>>>>>>> definitely there.
>>>>>>>>
>>>>>>>> On Tue, Feb 1, 2011 at 3:58 PM, Anthony Minessale
>>>>>>>> <anthony.minessale at gmail.com> wrote:
>>>>>>>>> Are you saying you have better results on that version than you do on
>>>>>>>>> the latest?
>>>>>>>>> What conditions do you have that cause you trouble, what is the
>>>>>>>>> endpoint on the other side.
>>>>>>>>>
>>>>>>>>> If the last commit to mod_loopback intended to improve audio quality
>>>>>>>>> actually makes it worse I need to investigate it.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Tue, Feb 1, 2011 at 5:53 AM, Dan Lane <null at invalid.name> wrote:
>>>>>>>>>> FWIW we've been also been having audio issues with loopback recently
>>>>>>>>>> on EC2 (with a 1000Hz kernel).
>>>>>>>>>>
>>>>>>>>>> We worked around it in the short term by reverting mod_loopback to
>>>>>>>>>> git-4c5426f during the build process.
>>>>>>>>>>
>>>>>>>>>> For anyone else who wants to try this just run "git checkout 4c5426f"
>>>>>>>>>> in src/mod/endpoints/mod_loopback then build as usual. This is NOT a
>>>>>>>>>> long term solution though.
>>>>>>>>>>
>>>>>>>>>> On Mon, Jan 31, 2011 at 8:02 AM, Øyvind Albrigtsen <oa at estation.dk> wrote:
>>>>>>>>>>> Thanks for all your feedback. I'll keep on trying and inform you what
>>>>>>>>>>> worked for me.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Regards
>>>>>>>>>>> Oyvind
>>>>>>>>>>>
>>>>>>>>>>> On 2011-01-29 21:48, Anthony Minessale wrote:
>>>>>>>>>>>> Everyone should try latest GIT before pondering any further because I
>>>>>>>>>>>> added a patch like 2 days ago to adress this issue.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Sat, Jan 29, 2011 at 2:12 PM, Frank Park<frank at telonium.com>  wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Yeah. I, too, don't see the correlation between the NTP and hw timer..
>>>>>>>>>>>>> I am not familiar with the timer_test command and what it's measuring, but
>>>>>>>>>>>>> of the 50 tests it ran, min is 19089 and max is 20713.
>>>>>>>>>>>>> Frank
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Fri, Jan 28, 2011 at 2:33 PM, David Ponzone<david.ponzone at ipeva.fr>
>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Frank,
>>>>>>>>>>>>>> I fail to see the relationship between the hw timer and NTP.
>>>>>>>>>>>>>> Can you please elaborate ?
>>>>>>>>>>>>>> David Ponzone  Direction Technique
>>>>>>>>>>>>>> email: david.ponzone at ipeva.fr
>>>>>>>>>>>>>> tel:      01 74 03 18 97
>>>>>>>>>>>>>> gsm:   06 66 98 76 34
>>>>>>>>>>>>>> Service Client IPeva
>>>>>>>>>>>>>> tel:      0811 46 26 26
>>>>>>>>>>>>>> www.ipeva.fr  -   www.ipeva-studio.com
>>>>>>>>>>>>>> Ce message et toutes les pièces jointes sont confidentiels et établis à
>>>>>>>>>>>>>> l'intention exclusive de ses destinataires. Toute utilisation ou diffusion
>>>>>>>>>>>>>> non autorisée est interdite. Tout message électronique est susceptible
>>>>>>>>>>>>>> d'altération. IPeva décline toute responsabilité au titre de ce message s'il
>>>>>>>>>>>>>> a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce
>>>>>>>>>>>>>> message, merci de le détruire immédiatement et d'avertir l'expéditeur.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Le 28/01/2011 à 19:49, Frank Carmickle a écrit :
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Hi
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Jan 28, 2011, at 7:39 AM, Øyvind Albrigtsen wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I'm using latest git-version of Freeswitch, and when I go to voicemail
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> when calling a number the sound playback is choppy and it skips some of
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> the digits in the number I called.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> What kind of results do you get from timer_test at the fs_cli?  Are you
>>>>>>>>>>>>>> running on hardware or are you virtualized?  What is your clock source set
>>>>>>>>>>>>>> to and what are your available clock source options?  See
>>>>>>>>>>>>>> /sys/devices/system/clocksource/clocksource0/available_clocksource and
>>>>>>>>>>>>>> /sys/devices/system/clocksource/clocksource0/current_clocksource.  I am
>>>>>>>>>>>>>> running virtualized with the 2.6.26-2-xen-amd64 and I can get timer_test to
>>>>>>>>>>>>>> hang at 19998/19999 which works very well for me.  When I was having problem
>>>>>>>>>>>>>> it was reporting numbers all over the map from 17400 to 22600 with lots of
>>>>>>>>>>>>>> randomness in between.  I have my clocksource set to jiffies and xen
>>>>>>>>>>>>>> independent wallclock set to 1.  Of course at that point you need to have
>>>>>>>>>>>>>> ntp running against a bunch of servers to drive your clock nice and steady.
>>>>>>>>>>>>>>   I know my set up is probably a lot different than yours but I thought I'd
>>>>>>>>>>>>>> toss it out there to show that some of the harshest conditions can be dealt
>>>>>>>>>>>>>> with and don't give up trying.  If you are running on hardware with a cpu
>>>>>>>>>>>>>> that doesn't have constant_tsc then you might have some problems.  Just play
>>>>>>>>>>>>>> with the different timer options until you find the one that works.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> HTH
>>>>>>>>>>>>>> --FC
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>> 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
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>> 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
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>>
>>>>>>>>>>>>> ----=======================----
>>>>>>>>>>>>> Frank Park
>>>>>>>>>>>>> Telonium Communications, LLC
>>>>>>>>>>>>> frank at telonium.com
>>>>>>>>>>>>> http://www.telonium.com
>>>>>>>>>>>>> Follow Us on Twitter: @GetTelonium
>>>>>>>>>>>>> 404-566-8888 x1001 Office
>>>>>>>>>>>>> 404-939-4242 Cell
>>>>>>>>>>>>> ----=======================----
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>> 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
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> 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
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> 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
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Anthony Minessale II
>>>>>>>>>
>>>>>>>>> FreeSWITCH http://www.freeswitch.org/
>>>>>>>>> ClueCon http://www.cluecon.com/
>>>>>>>>> Twitter: http://twitter.com/FreeSWITCH_wire
>>>>>>>>>
>>>>>>>>> AIM: anthm
>>>>>>>>> MSN:anthony_minessale at hotmail.com
>>>>>>>>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>>>>>>>>> IRC: irc.freenode.net #freeswitch
>>>>>>>>>
>>>>>>>>> FreeSWITCH Developer Conference
>>>>>>>>> sip:888 at conference.freeswitch.org
>>>>>>>>> googletalk:conf+888 at conference.freeswitch.org
>>>>>>>>> pstn:+19193869900
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> 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
>>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> 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
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Anthony Minessale II
>>>>>>>
>>>>>>> FreeSWITCH http://www.freeswitch.org/
>>>>>>> ClueCon http://www.cluecon.com/
>>>>>>> Twitter: http://twitter.com/FreeSWITCH_wire
>>>>>>>
>>>>>>> AIM: anthm
>>>>>>> MSN:anthony_minessale at hotmail.com
>>>>>>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>>>>>>> IRC: irc.freenode.net #freeswitch
>>>>>>>
>>>>>>> FreeSWITCH Developer Conference
>>>>>>> sip:888 at conference.freeswitch.org
>>>>>>> googletalk:conf+888 at conference.freeswitch.org
>>>>>>> pstn:+19193869900
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> 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
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> 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
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Best regards,
>>>>>
>>>>> Dmitry Sytchev,
>>>>> IT Engineer
>>>>>
>>>>> _______________________________________________
>>>>> 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
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Anthony Minessale II
>>>>
>>>> FreeSWITCH http://www.freeswitch.org/
>>>> ClueCon http://www.cluecon.com/
>>>> Twitter: http://twitter.com/FreeSWITCH_wire
>>>>
>>>> AIM: anthm
>>>> MSN:anthony_minessale at hotmail.com
>>>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>>>> IRC: irc.freenode.net #freeswitch
>>>>
>>>> FreeSWITCH Developer Conference
>>>> sip:888 at conference.freeswitch.org
>>>> googletalk:conf+888 at conference.freeswitch.org
>>>> pstn:+19193869900
>>>>
>>>> _______________________________________________
>>>> 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
>>>>
>>>
>>>
>>>
>>> --
>>> Best regards,
>>>
>>> Dmitry Sytchev,
>>> IT Engineer
>>>
>>> _______________________________________________
>>> 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
>>>
>>
>>
>>
>> --
>> Anthony Minessale II
>>
>> FreeSWITCH http://www.freeswitch.org/
>> ClueCon http://www.cluecon.com/
>> Twitter: http://twitter.com/FreeSWITCH_wire
>>
>> AIM: anthm
>> MSN:anthony_minessale at hotmail.com
>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>> IRC: irc.freenode.net #freeswitch
>>
>> FreeSWITCH Developer Conference
>> sip:888 at conference.freeswitch.org
>> googletalk:conf+888 at conference.freeswitch.org
>> pstn:+19193869900
>>
>> _______________________________________________
>> 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
>>
>
>
>
> --
> Best regards,
>
> Dmitry Sytchev,
> IT Engineer
>
> _______________________________________________
> 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
>



-- 
Anthony Minessale II

FreeSWITCH http://www.freeswitch.org/
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Twitter: http://twitter.com/FreeSWITCH_wire

AIM: anthm
MSN:anthony_minessale at hotmail.com
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