[bdNOG] Call Center Voice quality improve in public internet and call center security
Aniruddha Barua
aniruddha.barua at colbd.com
Wed Nov 20 18:31:01 BDT 2013
Dear Simon bhai,
I am not asking for our network. I am asking from learning point of view. ISPs like us use Allot, Packeteer, ET, MikroTik etc. I was wondering what the carriers/transit providers might use to shape up QoS for IP traffic (VoIP, IP Telephony, Video etc.). International calls pass through one or more of these transit networks. If end to end QoS has to be ensured along the path, transit providers will have to use such an equipment at IP level. I feel, at Gigabit speeds, shaping up traffic without compromising performance should be extremely difficult. I think, from transit providers' point of view, IPLC is the best option for best QoS but I might be wrong. Inputs from the experts in this list are welcome.
Regards,
ANIRUDDHA BARUA
Email: aniruddha.barua at colbd.com, cto at colbd.com
On Nov 20, 2013, at 2:22 PM, "Simon Sohel Baroi / IIG-ITC / Sr.Manager / 01678618243 /" <simon.baroi at fiberathome.net> wrote:
> Dear Aniruddha Da,
>
> Can you please explain where you want to use this equipment. Are you want to use it in your ISP to serve client and control them from a central point.
>
> Please let us know a bit of details about it.
>
> - with regards
>
> SIMON
> FiBER at HOME.
>
>
> On Wed, Nov 20, 2013 at 2:06 PM, Aniruddha Barua <aniruddha.barua at colbd.com> wrote:
>> Hello everyone,
>>
>> 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.
>>
>> Regards,
>>
>> ANIRUDDHA BARUA
>> Email: aniruddha.barua at colbd.com, cto at colbd.com
>>
>>
>> ---------- Original Message -----------
>> From: Suvra Dev Kar <eng.suvra at gmail.com>
>> To: Palash Kanti Barua <palash at bol-online.com>
>> Cc: nog at bdnog.org
>> Sent: Mon, 18 Nov 2013 18:11:31 +0600
>> Subject: Re: [bdNOG] Call Center Voice quality improve in public internet and call center security
>>
>> > Dear Mr. Palash,
>> >
>> > Yes , you are right, Provider never can give us this stats. thats why maximum time get voice break issue. SP can not ensure QoS.
>> > you know any good vendor.
>> >
>> > Best Regards
>> > Suvro.
>> >
>> > On Mon, Nov 18, 2013 at 6:00 PM, Palash Kanti Barua <palash at bol-online.com> wrote:
>> >
>>>
>>>
>>> >
>>> > Dear Mr. Shuvro,
>>> >
>>> > You can ask your SP to ensure the following requirements for good voice quality.
>>> >
>>> > 1) Packet Loss should be no more than 1% between source and destination
>>> > 2) One-way Latency (mouth-to-ear) should be no more than 150 ms
>>> > 3) Average one-way Jitter should be targeted under 30 ms
>>> >
>>> > 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.
>>> >
>>> >
>>> > Regards,
>>> > Palash
>>> > BOL
>>> >
>>> > From: Suvra Dev Kar [mailto:eng.suvra at gmail.com]
>>> > Sent: Monday, November 18, 2013 3:51 PM
>>> > To: Md Zahidul Haque
>>> > Cc: Jahangir Hossain; Palash Kanti Barua; nog at bdnog.org
>>> >
>>> > Subject: Re: [bdNOG] Call Center Voice quality improve in public internet and call center security
>>> >
>>> >
>>> >
>>> > Dear Team Member,
>>> > 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.
>>> > 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.,
>>> >
>>> >
>>> > and thanks to roman bhai, that for voice termination workshop agenda,. It is very important for Bangladesh.
>>> >
>>> > FOr routing we are using Tier 1 provider. for compression we are using 20 ms payload size for g729 call.
>>> >
>>> >
>>> >
>>> >
>>> > Best Regards
>>> > Suvro
>>> > Helloworld Communication Ltd.
>>> >
>>> >
>>> >
>>> > On Mon, Nov 18, 2013 at 11:35 AM, Md Zahidul Haque <zahid at zhaque.net> wrote:
>>> >
>>> > Palash vai is absolutely right.
>>> > There are lots of other factor like BW, Compression mechanism, routing mechanism etc. that can cause the poor quality of voice.
>>> >
>>> > Zahidul Haque
>>> > HRC IGW
>>> >
>>> > From: nog-bounces at bdnog.org [mailto:nog-bounces at bdnog.org] On Behalf Of Jahangir Hossain
>>> > Sent: Monday, November 18, 2013 11:13 AM
>>> > To: Palash Kanti Barua
>>> > Cc: nog at bdnog.org
>>> > Subject: Re: [bdNOG] Call Center Voice quality improve in public internet and call center security
>>> >
>>> >
>>> >
>>> > 1+ palash bhai.
>>> >
>>> >
>>> >
>>> > Regards // Jahangir Hossain
>>> >
>>> > Open Communication
>>> >
>>> >
>>> > On Mon, Nov 18, 2013 at 11:08 AM, Palash Kanti Barua <palash at bol-online.com> wrote:
>>> > Dear Mr. Suvro,
>>> >
>>> > Your voice traffic is passing from source to destination and vice versa
>>> > using different carriers' network. So, it would be really difficult to
>>> > ensure End-to-End voice quality over the Internet. No one will guarantee for
>>> > it. Still IPLC is the best solution for it though it is quite costly. There
>>> > is one alternative solution is to get international MPLS connectivity if any
>>> > SP can provide you the same in BD. As far as I know, there is no firewall
>>> > device or software which can improve the voice quality over the internet.
>>> >
>>> > Regards,
>>> > Palash Kanti Barua
>>> > BOL
>>> >
>>> > -----Original Message-----
>>> > From: nog-bounces at bdnog.org [mailto:nog-bounces at bdnog.org] On Behalf Of
>>> > Suvra Dev Kar
>>> >
>>> > Sent: Monday, November 18, 2013 12:41 AM
>>> > To: nog at bdnog.org
>>> > Subject: [bdNOG] Call Center Voice quality improve in public internet and
>>> > call center security
>>> >
>>> > Dear BD nog Team member,
>>> >
>>> > I am suvro from Hello world communications ltd. we are international
>>> > call center, we are using voice termination through public internet,
>>> > maximum time we face voice quality issue. Now can you tel me any one
>>> > how i can get good voice quality from public internet. we are not
>>> > using IPLC coz its costly. and tel me for call center and voice
>>> > termination which firewall device or software i can use.
>>> >
>>> > Best Regards
>>> > Suvro Dev
>>> > Hello world communications Ltd
>>> > cell- +8801745724242.
>>> > _______________________________________________
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>>> >
>>>
>>> > --
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
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>>
>> ------- End of Original Message -------
>>
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>
>
> --
> Simon Sohel Baroi | Sr. Manager, Technology | PICO | ITC - IIG |
> Cell : +880-1678-618243, +880-181-7022207 | Desk : +880-9666776677 Ext-1031 |
> Mail : simon.baroi at pico.net.bd | Skype : tx.fttx |
>
> Reduce. Reuse. Recycle. Respect. It's the little things that really can make a difference.
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