<div>Raskin </div>
<div></div>
<div>Thanks for your explanation on Microtik Router . Specially on separation of the Voice traffic and Data Traffic.</div>
<div></div>
<div>With Thanks </div>
<div>Emon Khastagir</div>
<div></div>
<div></div>
<div>----- Original Message -----<br />From: raskin paul <raskin_ece@yahoo.com><br />To: Suvra Dev Kar <eng.suvra@gmail.com>, Palash Kanti Barua <palash@bol-online.com><br />Cc: nog@bdnog.org<br />Sent: Tue, 19 Nov 2013 14:42:30 +0600 (BDT)<br />Subject: Re: [bdNOG] Call Center Voice quality improve in public internet and call center security</div>
<div></div>
<div style="color: #000; background-color: #fff; font-family: times new roman, new york, times, serif; font-size: 12pt;">Dear Suvro Bhai,<br />
<div></div>
As per your requirement of "<span style="font-weight: bold;">any one have any Band width which can defer voice traffic and data <br /> traffic when it is going through any pipe link. coz voice traffic <br /> will be priority in public internet, how i can do this, or who <br />can give this type of service</span>" you can simply use Mikrotik Routers where you can separate the Voice traffic and Data Traffic using Mikroitk Mangle and Queue Tree feature by giving priority to Voice Traffic over other types of traffic such as Data.<br />
<div></div>
Regarding End to End path Voice QOS towards Internet really not feasible due to lots of dependency already mentioned by the senior members of bdNOG community.Everyone uses the VOIP QOS at his own network for VOIP priority.Regarding Firewalls Cisco Firewalls also can do the VOIP QOS using Express Forwarding feature by setting ef bits and inspecting RTP packets.But till now Mikrotik is the most cheap with great security solutions for VOIP packet QOS from my observation. <br />
<div><br /><span></span></div>
<div style="color: #000000; font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: <br> normal;"><span>Thanks</span></div>
<div style="color: #000000; font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"></div>
<div style="color: #000000; font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Raskin Paul</div>
<div style="color: #000000; font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Network Support Specialist</div>
<div style="color: #000000; font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">IBM Bangladesh<br /><span></span></div>
<div style="color: #000000; font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span> </span></div>
<div style="display: block;" class="yahoo_quoted"><br />
<div></div>
<div style="font-family: times new roman, new york, times, serif; font-size: 12pt;">
<div style="font-family: times new roman, new york, times, serif; font-size: 12pt;">
<div dir="ltr"><span style="font-family: Arial; font-size: small;" face="Arial" size="2"> On Monday, 18 November 2013, 18:12, Suvra Dev Kar <eng.suvra@gmail.com> wrote:<br /></span></div>
<div class="y_msg_container">
<div id="yiv3724659668">
<div>
<div dir="ltr">
<div>
<div>
<div>Dear Mr. Palash,<br clear="none" /><br clear="none" /></div>
Yes , you are right, Provider never can give us this stats. thats why maximum time get voice break issue. SP can not ensure QoS.</div>
you know any good vendor.<br clear="none" /><br clear="none" /><br clear="none" /></div>
Best Regards<br clear="none" />Suvro.<br clear="none" />
<div>
<div>
<div></div>
</div>
</div>
</div>
<div class="yiv3724659668yqt5630222591" id="yiv3724659668yqt82162">
<div class="yiv3724659668gmail_extra"><br clear="none" /><br clear="none" />
<div class="yiv3724659668gmail_quote">On Mon, Nov 18, 2013 at 6:00 PM, Palash Kanti Barua <span dir="ltr"><<a rel="nofollow" shape="rect" target="_blank" href="mailto:palash@bol-online.com">palash@bol-online.com</a>></span> wrote:<br clear="none" />
<blockquote class="yiv3724659668gmail_quote" style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;">
<div lang="EN-US">
<div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;">Dear Mr. Shuvro,<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;">You can ask your SP to ensure the following requirements for good voice quality.<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></span></div>
<div><span style="text-decoration: underline;"></span><span style="font-size: 10.0pt;"><span>1)<span style="font: 7.0pt;"> </span></span></span><span style="text-decoration: underline;"></span><span style="font-size: 10.0pt;">Packet <b>Loss</b> should be no more than <b>1%</b> between source and destination <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div><span style="text-decoration: underline;"></span><span style="font-size: 10.0pt;"><span>2)<span style="font: 7.0pt;"> </span></span></span><span style="text-decoration: underline;"></span><span style="font-size: 10.0pt;">One-way <b>Latency</b> (mouth-to-ear) should be no more than <b>150</b> ms<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div><span style="text-decoration: underline;"></span><span style="font-size: 10.0pt;"><span>3)<span style="font: 7.0pt;"> </span></span></span><span style="text-decoration: underline;"></span><span style="font-size: 10.0pt;">Average one-way <b>Jitter</b> should be targeted under <b>30</b> ms<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;">If you use Ethernet connection and G.729 at 50 pps with 20 ms sampling rate, you need at least 37 kbps bandwidth for each call. Please correct me if I am wrong.<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;">Regards,<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;">Palash<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 10.0pt;">BOL<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></span></div>
<div style="border: none; border-top: solid #b5c4df 1.0pt; padding: 3.0pt 0in 0in 0in;">
<div class="yiv3724659668MsoNormal"><b><span style="font-size: 10.0pt;">From:</span></b><span style="font-size: 10.0pt;"> Suvra Dev Kar [mailto:<a rel="nofollow" shape="rect" target="_blank" href="mailto:eng.suvra@gmail.com">eng.suvra@gmail.com</a>] <br clear="none" /><b>Sent:</b> Monday, November 18, 2013 3:51 PM<br clear="none" /><b>To:</b> Md Zahidul Haque<br clear="none" /><b>Cc:</b> Jahangir Hossain; Palash Kanti Barua; <a rel="nofollow" shape="rect" target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a></span></div>
<div>
<div class="yiv3724659668h5"><br clear="none" /><b>Subject:</b> Re: [bdNOG] Call Center Voice quality improve in public internet and call center security<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
</div>
<div>
<div class="yiv3724659668h5">
<div class="yiv3724659668MsoNormal"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;">Dear Team Member,<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;">Thanks For your Suggestion. I know voice quality can not improve using any firewall. firewall and voice quality is both are different. i saw if network any firewall have which is create problem for voice termination. but firewall is important to secure the network. i want to know any device which can support voice termination. <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;">and for voice quality issue i am not interest to get IPLC, without IPLC how i can get good voice quality from public internet in Bangladesh. any one have any Band width which can defer voice traffic and data traffic when it is going through any pipe link. coz voice traffic will be priority in public internet, how i can do this, or who can give this type of service.,<br clear="none" /><br clear="none" /><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;">and thanks to roman bhai, that for voice termination workshop agenda,. It is very important for Bangladesh.<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div>
<div class="yiv3724659668MsoNormal">FOr routing we are using Tier 1 provider. for compression we are using 20 ms payload size for g729 call.<br clear="none" /><br clear="none" /><br clear="none" /> <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div>
<div class="yiv3724659668MsoNormal"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal">Best Regards<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal">Suvro<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal">Helloworld Communication Ltd.<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></div>
<div>
<div class="yiv3724659668MsoNormal">On Mon, Nov 18, 2013 at 11:35 AM, Md Zahidul Haque <<a rel="nofollow" shape="rect" target="_blank" href="mailto:zahid@zhaque.net">zahid@zhaque.net</a>> wrote:<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div>
<div class="yiv3724659668MsoNormal" style="margin-left: .5in;"><span style="font-size: 11.0pt;">Palash vai is absolutely right. </span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div class="yiv3724659668MsoNormal" style="margin-left: .5in;"><span style="font-size: 11.0pt;">There are lots of other factor like BW, Compression mechanism, routing mechanism etc. that can cause the poor quality of voice.</span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div class="yiv3724659668MsoNormal" style="margin-left: .5in;"><span style="font-size: 11.0pt;"> </span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div class="yiv3724659668MsoNormal" style="margin-left: .5in;"><span style="font-size: 11.0pt;">Zahidul Haque</span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div class="yiv3724659668MsoNormal" style="margin-left: .5in;"><span style="font-size: 11.0pt;">HRC IGW</span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div class="yiv3724659668MsoNormal"><span style="font-size: 11.0pt;"> </span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div class="yiv3724659668MsoNormal"><b><span style="font-size: 10.0pt;">From:</span></b><span style="font-size: 10.0pt;"><a rel="nofollow" shape="rect" target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a> [mailto:<a rel="nofollow" shape="rect" target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a>] <b>On Behalf Of </b>Jahangir Hossain<br clear="none" /><b>Sent:</b> Monday, November 18, 2013 11:13 AM<br clear="none" /><b>To:</b> Palash Kanti Barua<br clear="none" /><b>Cc:</b><a rel="nofollow" shape="rect" target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a><br clear="none" /><b>Subject:</b> Re: [bdNOG] Call Center Voice quality improve in public internet and call center security</span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div>
<div class="yiv3724659668MsoNormal"> <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div>
<div class="yiv3724659668MsoNormal"><span>1+ palash bhai.</span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;"><br clear="none" /><br clear="none" /><br clear="none" /><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div class="yiv3724659668MsoNormal"><span>Regards // Jahangir Hossain</span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div>
<div class="yiv3724659668MsoNormal"><span> Open Communication</span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal"> <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div class="yiv3724659668MsoNormal">On Mon, Nov 18, 2013 at 11:08 AM, Palash Kanti Barua <<a rel="nofollow" shape="rect" target="_blank" href="mailto:palash@bol-online.com">palash@bol-online.com</a>> wrote:<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div class="yiv3724659668MsoNormal">Dear Mr. Suvro,<br clear="none" /><br clear="none" />Your voice traffic is passing from source to destination and vice versa<br clear="none" />using different carriers' network. So, it would be really difficult to<br clear="none" />ensure End-to-End voice quality over the Internet. No one will guarantee for<br clear="none" /><br />it. Still IPLC is the best solution for it though it is quite costly. There<br clear="none" />is one alternative solution is to get international MPLS connectivity if any<br clear="none" />SP can provide you the same in BD. As far as I know, there is no firewall<br clear="none" /><br />device or software which can improve the voice quality over the internet.<br clear="none" /><br clear="none" />Regards,<br clear="none" />Palash Kanti Barua<br clear="none" />BOL<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div class="yiv3724659668MsoNormal"><br clear="none" />-----Original Message-----<br clear="none" />From: <a rel="nofollow" shape="rect" target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a> [mailto:<a rel="nofollow" shape="rect" target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a>] On Behalf Of<br clear="none" /><br />Suvra Dev Kar<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;">Sent: Monday, November 18, 2013 12:41 AM<br clear="none" />To: <a rel="nofollow" shape="rect" target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a><br clear="none" />Subject: [bdNOG] Call Center Voice quality improve in public internet and<br clear="none" /><br />call center security<span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div>
<div>
<div class="yiv3724659668MsoNormal">Dear BD nog Team member,<br clear="none" /><br clear="none" /><br clear="none" />I am suvro from Hello world communications ltd. we are international<br clear="none" />call center, we are using voice termination through public internet,<br clear="none" /><br />maximum time we face voice quality issue. Now can you tel me any one<br clear="none" />how i can get good voice quality from public internet. we are not<br clear="none" />using IPLC coz its costly. and tel me for call center and voice<br clear="none" /><br />termination which firewall device or software i can use.<br clear="none" /><br clear="none" /><br clear="none" />Best Regards<br clear="none" />Suvro Dev<br clear="none" />Hello world communications Ltd<br clear="none" />cell- <a rel="nofollow" shape="rect">+8801745724242</a>.<br clear="none" />_______________________________________________<br clear="none" /><br />nog mailing list<br clear="none" /><a rel="nofollow" shape="rect" target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a><br clear="none" /><a rel="nofollow" shape="rect" target="_blank" href="http://mailman.bdnog.org/mailman/listinfo/nog">http://mailman.bdnog.org/mailman/listinfo/nog</a><br clear="none" /><br clear="none" />_______________________________________________<br clear="none" /><br />nog mailing list<br clear="none" /><a rel="nofollow" shape="rect" target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a><br clear="none" /><a rel="nofollow" shape="rect" target="_blank" href="http://mailman.bdnog.org/mailman/listinfo/nog">http://mailman.bdnog.org/mailman/listinfo/nog</a><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
</div>
</div>
<div class="yiv3724659668MsoNormal"><br clear="none" /><br clear="all" /><br clear="none" />-- <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div>
<div>
<div>
<div class="yiv3724659668MsoNormal"><span> </span><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
</div>
<div class="yiv3724659668MsoNormal"> <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal"> <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
<div>
<div>
<div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;"> <span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="yiv3724659668MsoNormal" style="margin-bottom: 12.0pt;"><br clear="none" />_______________________________________________<br clear="none" />nog mailing list<br clear="none" /><a rel="nofollow" shape="rect" target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a><br clear="none" /><a rel="nofollow" shape="rect" target="_blank" href="http://mailman.bdnog.org/mailman/listinfo/nog">http://mailman.bdnog.org/mailman/listinfo/nog</a><span style="text-decoration: underline;"></span><span style="text-decoration: underline;"></span></div>
</div>
<div class="yiv3724659668MsoNormal"><span style="text-decoration: underline;"></span> <span style="text-decoration: underline;"></span></div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
<br />
<div class="yqt5630222591" id="yqt66553">_______________________________________________<br clear="none" />nog mailing list<br clear="none" /><a shape="rect" href="mailto:nog@bdnog.org" target="_blank">nog@bdnog.org</a><br clear="none" /><a shape="rect" href="http://mailman.bdnog.org/mailman/listinfo/nog" target="_blank">http://mailman.bdnog.org/mailman/listinfo/nog</a></div>
<br />
<div></div>
</div>
</div>
</div>
</div>
</div>
<div></div>