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ForumsVoIPVOIP Qos


53 posts

Master Geek
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Topic # 204815 18-Oct-2016 19:35
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Hi, if anyone could help  please it would be appreciated.

 

I have a Netcomm NF4V connected as ADSL2 and a 2Talk VOIP number connected using a router FXS port quite well most of the time.

 

The main problem is that we live in a rural area where the  internet speed can drop when other people are also using the internet.

 

Also there is someone connected to the same router who downloads youtube videos.

 

I am lead to believe that by changing to VDSL (which the NF4V is capable of connecting to) the speeds will increase.

 

I have 2 questions:

 

1) are Qos settings for VOIP automatically invoked, or do I need to setup Qos settings to guarantee precedence over the local youtube downloads for this router?

 

2) by changing to VDSL, will our general data rate increase?

 

Thanks in advance.

 

 

 

 


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922 posts

Ultimate Geek
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  Reply # 1653140 18-Oct-2016 20:18
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Normally you shouldn't need to do anything. If your line is good enough to get VDSL then yes get it, it will probably increase your upload, which will be great.

 

You may need to set up QoS on SIP UDP traffic, but I would try it for a little while without fiddling with any QoS settings at all it might be fine. If you find you need to make adjustments then give SIP UDP higher priority than regular traffic. This is because VoIP doesn't generally use TCP which will ramp up/down on multiple connections, making it fair(ish) between applications or machines sharing the same network. You can use TCP type of VoIP stuff but thats a whole new kettle of fish.






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  Reply # 1653142 18-Oct-2016 20:20
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Downstream QoS can be incredibly difficult. It's very hard to do much with the packets once they've left your ISP and you have limited control over this. QoS on your upstream is easily configured.


 
 
 
 


172 posts

Master Geek
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  Reply # 1653143 18-Oct-2016 20:21
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Hi mugs2000,

 

In reply to (1):

 

The QoS settings in your router will only make effect to OUTbound VoIP traffic. For QoS on your inbound traffic, the QoS needs to be applied at the remote end (the end where the queue of packets is forming), ie at your ISP. If you use 2talk as your ISP then you're in luck, they have QoS tools that you can use via their 'live portal' web-site. If you use a different ISP, in general you're pretty much S.O.L (unless your ISP is very special).

 

In reply to (2):

 

As long as you're relatively close (<2km) to the FFLLC (roadside cabinet) then yes, absolutely. Especially in the upstream direction.

 

 

 

 

 

 




53 posts

Master Geek
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  Reply # 1653145 18-Oct-2016 20:22
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Darylblake, thanks for that info. We are located about 400 metres from the cabinet, so I guess VDSL should be advantageous.




53 posts

Master Geek
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  Reply # 1653150 18-Oct-2016 20:27
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Thanks for the info sbiddle & speed.

 

Looks like I'll be contacting my ISP tomorrow to upgrade to VDSL


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  Reply # 1653151 18-Oct-2016 20:32
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Jump on VDSL for a start and see how you go. If you have a 2talk number then have a look at their broadband service too.
Means less latency to the voice servers and they can manage traffic to leave room for the voice traffic.

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  Reply # 1653157 18-Oct-2016 20:36
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You shouldnt have neighbours use affect you unless you are on a conklin, in which case VDSL is not available.

 

You could look at bigpipe as your ISP, they let you configure the connection to prioritize things from their end. I have only had a quick play with it since I only really torrent or download on that connection, but it did seem to be able to slow things down when I enabled the options in their app.





Richard rich.ms

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Ultimate Geek
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  Reply # 1653169 18-Oct-2016 21:01
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sbiddle:

 

Downstream QoS can be incredibly difficult. It's very hard to do much with the packets once they've left your ISP and you have limited control over this. QoS on your upstream is easily configured.

 

 

Trying to limit downstream with QoS is like trying to control Niagra Falls by using a plastic bucket. Having said that, streaming services like YouTube seem to adjust its quality in response to a QoS downstream limit.


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