No fax so far. Planned. Ubuntu. Lts. El 07/04/2015 15:26, "Brian West" <brian@freeswitch.org> escribió:
Do you happen to do faxing on EC2? Also what distro do you run on your instances?
On Tue, Apr 7, 2015 at 2:22 PM, Victor Medina <victor.medina@cibersys.com> wrote:
Price aside... we have no issues so far with Amazon. Carlos.
2015-04-05 19:22 GMT-04:30 Carlos Ruiz Díaz <carlos.ruizdiaz@gmail.com>:
This makes me wonder whether to stick with DO or migrate to Amazon.
Any advice on EC2 quality compared to DO?
On Sun, Apr 5, 2015 at 5:33 PM, Stanislav Sinyagin <ssinyagin@gmail.com> wrote:
I made additional tests by sending calls to sipgate.co.uk, and they confirm my results: when sending a call from my Xen server in Switzerland, the received audio is always perfect. But when sending from a Digitalocean host in Amsterdam, I get the slipping frames.
I will re-test again during a business day, when the servers are likely to be more busy.
On Sun, Apr 5, 2015 at 12:47 PM, Stanislav Sinyagin < ssinyagin@gmail.com> wrote:
Yrs, jitter buffer was enabled. Here I'm pretty sure that we deal with the clock skew. On Apr 5, 2015 12:07 PM, "Brian West" <brian@freeswitch.org> wrote:
Correct me if I'm wrong but is sounds like you've described jitter. Did you test with the jitter buffer enabled?
On Sunday, April 5, 2015, Regis M <regis.freeswitch.org@tornad.net> wrote:
> nice work !!! Thanks for sharing. > > > > 2015-04-05 2:37 GMT+02:00 Stanislav Sinyagin <ssinyagin@gmail.com>: > >> here we go: >> >> https://txlab.wordpress.com/2015/04/05/testing-rtp-clock-precision-on-a-virt... >> >> >> >> On Sat, Apr 4, 2015 at 4:26 PM, Stanislav Sinyagin < >> ssinyagin@gmail.com> wrote: >> > On Sat, Apr 4, 2015 at 1:03 PM, Regis M < >> regis.freeswitch.org@tornad.net> wrote: >> >> How do you check wavs together in audacity ? >> > >> > you just open two WAV files, align their starting position, and >> > visually check the waves. If there's a problem, you would see that >> > after few seconds, the waves are not aligned any more. >> > >> >> Can you send me 2 samples wav (send... and recorded) so I could >> see the 20ms >> >> diff that you exposed... >> >> >> >> Is there a way to automate the result checking, so it could help >> to monitor >> >> itsp quality >> > >> > Here >> > https://github.com/openpreserve/scape-xcorrsound/issues/17 >> > this is a link to a tool which compares two sound files at the >> wave >> > level. You can also see the sound samples in the ticket. >> > The problem is, that currently this tool does not detect such >> slipping frames. >> > >> > I will also write a detailed article with examples, during the >> weekend. >> > >> > >> > >> > >> > >> >> >> >> >> >> 2015-04-04 12:53 GMT+02:00 Stanislav Sinyagin < >> ssinyagin@gmail.com>: >> >>> >> >>> Important is to send the media through two independent carriers >> - then you >> >>> can be sure that your clock is compared against a high quality >> one. >> >>> >> >>> On Apr 4, 2015 12:46 PM, "Regis M" < >> regis.freeswitch.org@tornad.net> >> >>> wrote: >> >>>> >> >>>> Hi, >> >>>> >> >>>> It's a very interresting test and conclusion. >> >>>> >> >>>> I will try to build a similar environnement on my freeswitch >> to check >> >>>> some system :) >> >>>> >> >>>> thanks >> >>>> >> >>>> >> >>>> >> >>>> 2015-04-04 2:16 GMT+02:00 Stanislav Sinyagin < >> ssinyagin@gmail.com>: >> >>>>> >> >>>>> hi, >> >>>>> >> >>>>> Here are some test results which might be interesting: >> >>>>> >> >>>>> I've set up a test FreeSWITCH server at digitalocean (they >> use KVM), >> >>>>> and originated test calls to some ITSP accounts. Each call >> played a >> >>>>> test sound file (voice samples from ITU: >> >>>>> >> http://www.itu.int/net/itu-t/sigdb/genaudio/AudioForm-g.aspx?val=1000050 >> >>>>> ), and on the receiving end another FreeSWITCH server was >> recording >> >>>>> the received session. The receiving server was on a XEN VM. >> Both >> >>>>> servers talked G711 to their corresponding ITSP accounts. >> >>>>> >> >>>>> Then I compared the source audio and received audio in >> Audacity editor. >> >>>>> >> >>>>> The tests showed that the received voice wave shifts 20ms >> from the >> >>>>> original sound every few seconds, randomly back and forward. >> This >> >>>>> skewing was always present, regardless of ITSP and time of >> day. >> >>>>> >> >>>>> Then I moved the sending server to a XEN VM, and the waves >> appeared >> >>>>> almost perfectly synchronized (there was a 5ms skew in one >> test, and I >> >>>>> guess it's related to transcoding buffer, as the sound was >> obviously >> >>>>> transcoded). >> >>>>> >> >>>>> The effect was always visible with a 30-second sample, and I >> also made >> >>>>> additional tests with 2-minute samples. >> >>>>> >> >>>>> It would also be interesting to test this from a VmWare VM. >> If someone >> >>>>> wants to run such a test, feel free to contact me directly. >> >>>>> >> >>>>> >> >>>>> cheers, >> >>>>> stan >> >>>>> >> >>>>> >> >>>>> >> _________________________________________________________________________ >> >>>>> Professional FreeSWITCH Consulting Services: >> >>>>> consulting@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@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@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@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@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@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@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@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@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@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@freeswitch.org
*Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com
ClueCon 2015 Call for Speakers <https://www.cluecon.com/call-for-speakers/> | Register <https://freeswitch.com/cart.php?gid=1> TODAY! | 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@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@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@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@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE: http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Carlos http://caruizdiaz.com
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@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@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
--
Víctor E. Medina M. Platform Architect / Chief Infrastructure +58424 291 4561 BB #79A8AFA2 @VMCibersys
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@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@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@freeswitch.org
*Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com
ClueCon 2015 Call for Speakers <https://www.cluecon.com/call-for-speakers/> | Register <https://freeswitch.com/cart.php?gid=1> TODAY! | 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@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@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org