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<font size="2">Hello everyone,
<br />
<br />Relating to this thread, I'd like to know if there is any equipment that can shape up QoS traffic without affecting Non-QoS traffic at carrier networks where bandwidth is in hundreds of Mbps to tens of Gbps.
<br />
<br />Regards,
<br />
<br />ANIRUDDHA BARUA
<br />
Email: aniruddha.barua@colbd.com, cto@colbd.com
<br />
<br />
<br /><b>---------- Original Message
-----------</b>
<br />
From: Suvra Dev Kar <eng.suvra@gmail.com>
<br />
To: Palash Kanti Barua <palash@bol-online.com>
<br />
Cc: nog@bdnog.org
<br />
Sent: Mon, 18 Nov 2013 18:11:31 +0600
<br />
Subject: Re: [bdNOG] Call Center Voice quality improve in public internet and
call center security
<br />
<br />> Dear Mr. Palash,
<br />>
<br />> Yes , you� are� right,� Provider�
never� can� give� us� this� stats.� thats why maximum time� get� voice� break�
issue.� SP can not ensure� QoS.
<br />> you know any� good� vendor.
<br />>
<br />> Best Regards
<br />> Suvro.
<br />>
<br />> On Mon, Nov 18, 2013 at
6:00 PM, Palash Kanti Barua <span dir="ltr"><<a target="_blank" href="mailto:palash@bol-online.com">palash@bol-online.com</a>></span> wrote:
<br />>
<blockquote style="margin: 0px 0px 0px 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="gmail_quote">
<br />>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">Dear
Mr.
Shuvro,</span>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">�</span>
<br />>
<span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">You
can ask your SP to ensure the following requirements for good voice
quality.</span>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">�</span>
<br />>
<span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;"><span>1)<span style="font: 7pt "Times New Roman";">����
</span></span></span><span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">Packet
<b>Loss</b> should be no more than <b>1%</b> between source and destination
�</span>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;"><span>2)<span style="font: 7pt "Times New Roman";">����
</span></span></span><span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">One-way
<b>Latency</b> (mouth-to-ear) should be no more than <b>150</b>
ms</span>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;"><span>3)<span style="font: 7pt "Times New Roman";">����
</span></span></span><span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">Average
one-way <b>Jitter</b> should be targeted under <b>30</b>
ms</span>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">�</span>
<br />>
<span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">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>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">�</span>
<br />>
<span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">�</span>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">Regards,</span>
<br />>
<span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">Palash</span>
<br />> <span style="font-size: 10pt; font-family: "Arial","sans-serif"; color: blue;">BOL</span>
<br />>
<br />> <b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
Suvra Dev Kar [mailto:<a target="_blank" href="mailto:eng.suvra@gmail.com">eng.suvra@gmail.com</a>]
<br />>
<b>Sent:</b> Monday, November 18, 2013 3:51 PM
<br />> <b>To:</b> Md Zahidul
Haque
<br />> <b>Cc:</b> Jahangir Hossain; Palash Kanti Barua; <a target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a></span>
<br />>
<br />> <b>Subject:</b> Re: [bdNOG] Call Center Voice quality improve in public
internet and call center security
<br />>
<br />>
�
<br />>
<br />> Dear� Team� Member,
<br />>
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.
<br />> 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 />>
<br />>
<br />> and� thanks�
to� roman bhai, that� for� voice termination workshop agenda,. It is� very�
important for� Bangladesh.
<br />>
<br />> FOr� routing we� are�
using� Tier 1 provider. for� compression we� are� using� 20 ms payload size for�
g729 call.
<br />>
<br />> �
<br />>
<br />>
�
<br />> Best Regards
<br />> Suvro
<br />>
Helloworld Communication Ltd.
<br />>
<br />>
�
<br />>
<br />> On Mon, Nov 18, 2013 at 11:35 AM, Md Zahidul
Haque <<a target="_blank" href="mailto:zahid@zhaque.net">zahid@zhaque.net</a>> wrote:
<br />>
<br />>
<span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Palash
vai is absolutely right. </span>
<br />> <span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">There
are lots of other factor like BW, Compression mechanism, routing mechanism etc.
that can cause the poor quality of
voice.</span>
<br />> <span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">�</span>
<br />>
<span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Zahidul
Haque</span>
<br />> <span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">HRC
IGW</span>
<br />> <span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">�</span>
<br />> <b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
<a target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a>
[mailto:<a target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a>] <b>On Behalf Of </b>Jahangir
Hossain
<br />>
<b>Sent:</b> Monday, November 18, 2013 11:13 AM
<br />> <b>To:</b> Palash Kanti
Barua
<br />> <b>Cc:</b> <a target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a>
<br />> <b>Subject:</b> Re: [bdNOG] Call
Center Voice quality improve in public internet and call center
security</span>
<br />>
<br />> �
<br />>
<br />> <span style="font-family: "Tahoma","sans-serif";">1+ palash
bhai.</span>
<br />>
<br />>
<br />>
<br />>
<span style="font-family: "Tahoma","sans-serif";">Regards� //
�Jahangir Hossain</span>
<br />>
<br />> <span style="font-family: "Tahoma","sans-serif";">�����������������
Open
Communication</span>
<br />> �
<br />>
<br />> On Mon, Nov 18, 2013 at 11:08 AM,
Palash Kanti Barua <<a target="_blank" href="mailto:palash@bol-online.com">palash@bol-online.com</a>>
wrote:
<br />> Dear Mr. Suvro,
<br />>
<br />> Your voice traffic is passing from
source to destination and vice versa
<br />> using different carriers'
network. So, it would be really difficult to
<br />> ensure End-to-End voice
quality over the Internet. No one will guarantee for
<br />>
it. Still IPLC is the best solution for it though it is quite costly.
There
<br />> is one alternative solution is to get international MPLS
connectivity if any
<br />> SP can provide you the same in BD. As far as I know,
there is no firewall
<br />>
device or software which can improve the voice quality over the
internet.
<br />>
<br />> Regards,
<br />> Palash Kanti Barua
<br />>
BOL
<br />>
<br />> -----Original Message-----
<br />> From: <a target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a>
[mailto:<a target="_blank" href="mailto:nog-bounces@bdnog.org">nog-bounces@bdnog.org</a>] On Behalf Of
<br />>
Suvra Dev Kar
<br />>
<br />> Sent: Monday, November 18, 2013
12:41 AM
<br />> To: <a target="_blank" href="mailto:nog@bdnog.org">nog@bdnog.org</a>
<br />> Subject: [bdNOG] Call Center Voice
quality improve in public internet and
<br />>
call center security
<br />>
<br />> Dear BD �nog Team
member,
<br />>
<br />> I �am suvro �from Hello world communications ltd. �we
�are international
<br />> call center, we �are �using �voice �termination
�through �public internet,
<br />>
maximum time we �face �voice quality issue. Now �can �you tel me �any
one
<br />> how �i �can get �good �voice �quality �from public �internet. we
�are �not
<br />> using �IPLC �coz �its costly. and tel me for �call center and
�voice
<br />>
termination �which �firewall �device or �software i can �use.
<br />>
<br />>
Best Regards
<br />> Suvro Dev
<br />> Hello world communications Ltd
<br />>
cell- <a target="_blank" href="tel:%2B8801745724242">+8801745724242</a>.
<br />>
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<br />> --
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<br />>
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<br />> �
<br />> �
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�
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<br />> �</blockquote>
<br /><b>------- End of Original Message
-------</b>
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