Re: [asterisk-users] asterisk and Hyper-V

2017-12-17 Thread Dmitriy Ermakov 
Hi, Kseniya!

I have three installations of Asterisk (as FreePBX but I think it is not
important). They work fine.

I have made some settings in Asterisk and Hyper-V:

Asterisk: timing interface - timerfd.

Hyper-V:

 1. Virtual Machine => Network Adapter => Hardware Acceleration =>
Virtual Machine Queue - Disable it;
 2. Virtual Machine => Processor => Virtual Machine Reserve (percentage)
- set at least 25% (if you have 4 virtual cores for your Asterisk).
You can try to set reserve more or less then 25% - test it and,
please, send email here;
 3. Virtual Machine => Integration Services => Time synchronisation -
enable it.

This settings helped me.

Also check your Linux Kernel version - it must be 3.10 or newer. I saw
very bad "timing test" results on kernel 2.6.32.


On 12/18/2017 10:26 AM, Kseniya Blashchuk wrote:
> Hi all!
> Does anybody have experience with asterisk on Hyper-V? My test setup
> with Ubuntu 16 and asterisk 13.1 (ubuntu repo) shows sound distortion.
> I have analyzed the RTP flow with wireshark and I see high skew and
> delta values when the traffic leaves the hypervisor, however
> everything is okay when a capture is taken from a VM itself. I have
> read that there can be timing problems with Hyper-V. I have tried to
> disable time sync with the machine and tried different clocksources. I
> have also tried to change asterisk timing interface to dahdi (dummy) -
> nothing helped so far. Hyper-V version is 12p2.
> Does anybody have a working setup with Hyper-V?
>
>
>

-- 
С уважением, Дмитрий Ермаков

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[asterisk-users] asterisk and Hyper-V

2017-12-17 Thread Kseniya Blashchuk 
Hi all!
Does anybody have experience with asterisk on Hyper-V? My test setup with
Ubuntu 16 and asterisk 13.1 (ubuntu repo) shows sound distortion. I have
analyzed the RTP flow with wireshark and I see high skew and delta values
when the traffic leaves the hypervisor, however everything is okay when a
capture is taken from a VM itself. I have read that there can be timing
problems with Hyper-V. I have tried to disable time sync with the machine
and tried different clocksources. I have also tried to change asterisk
timing interface to dahdi (dummy) - nothing helped so far. Hyper-V version
is 12p2.
Does anybody have a working setup with Hyper-V?
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Re: [asterisk-users] Any impact on VoIP from loss of Net neutrality

2017-12-17 Thread Ron Wheeler 


The article seems to focus on ISPs charging more for VoIP traffic.
This is only a money argument but seems to ignore the fact that my call 
from Montreal, Canada to Palm Springs, California will travel through a 
few networks that have no relationship with me.


It appears that carriers could increase latency on "foreign" VoIP 
traffic which could reduce us to being able to buy good local call 
service but unable to use phones for long distance calls.


Should national and multinational companies be concerned that even their 
ability to use the telephone for internal calls could be impacted by 
this.  It seems clear that the ability to make calls to customers and 
suppliers will become uncertain and potentially vary from cases to case.


Ron

On 16/12/2017 1:05 PM, Eric Klein wrote:

Hi Ron

There was an article back in July looking at what might happen

How does the 2017 Net Neutrality Debate Affect VoIP? ( 
https://voipstudio.com/2017-net-neutrality-debate-affect-voip/ )


In general, anything that allows them to charge more, limit, or 
prioritize can affect VoIP.
There were cases in the past where the carriers would do this via Deep 
Packet Inspection (DPI) to block services that competed with their own 
services. So it is not hard to envision this happening in the future.


That said., the vote was not the end of the story. There is still a 
law suit pending on this topic and Congress is being forced to review 
the decision (and potentially finally create a proper law). ( 
http://uproxx.com/news/senate-democrats-cc-net-neutrality-fight/ )


So it is worth it to contact your Senator and let them know what you 
think they are supposed to be doing in your name.


Eric Klein
COO
Greenfield
Main US +1 805 410 1010
Main UK +44 203 746 6000
Main Il    +972  73 255 7799
Mobile +972 54 666 0933

_Email _e...@greenfield.tech 
Skype: EricLKlein
Web: www.greenfield.tech 
www.cloudonix.io 



Message: 1
Date: Fri, 15 Dec 2017 09:42:00 -0500
From: Ron Wheeler >
To: Asterisk Users Mailing List - Non-Commercial Discussion
        >
Subject: [asterisk-users] Any impact on VoIP from loss of Net
        neutrality
Message-ID:
       
<72ebd344-8f94-d9f1-40e5-218536d60...@artifact-software.com
>
Content-Type: text/plain; charset=utf-8; format=flowed

Has there been any discussion about the the effect of the changes
in net
neutrality to VoIP service quality.

It seems to me that prioritizing streaming traffic from certain
content
delivery companies could have an impact on the latency for VoIP which
could disrupt phone service.

I found this article
https://voipstudio.com/2017-net-neutrality-debate-affect-voip/


It seems to be assuming that VoIP traffic only traverses one
network and
that my trunk provider will be able to charge me more and
guarantee that
my traffic get priority but I am pretty sure that at least some of my
traffic crosses many networks.

Am I way off track?


Ron

--
Ron Wheeler
President
Artifact Software Inc
email: rwhee...@artifact-software.com

skype: ronaldmwheeler
phone: 866-970-2435, ext 102





--
Ron Wheeler
President
Artifact Software Inc
email: rwhee...@artifact-software.com
skype: ronaldmwheeler
phone: 866-970-2435, ext 102

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