[Asterisk-Users] Re: Terrible inbound call quality vs. outbound

[Robert Goodyear]

Oh I've tried all manner of packet shaping and QoS tagging... it's 
certainly not an issue with the ISP.

I think Gene Willingham may have the right answer, that VoicePulse 
cannot handle the load.

Anyone else have any thoughts? Maybe I need to find another IAX service 
provider to test a different DID in my area.

/rg

On Feb 1, 2005, at 3:52 PM, Miguel Ruiz Velasco Sobrino wrote:

> I've had similar problems but with dial-up modems.
>
> ISP's mantain large queues in the inbound side of your connection to 
> maximize download
> speed, but that same hurts latency on your side. You may be saturating 
> the BW and thus
> the queue makes it's job.
> Use the bw conditioner that is described in the advanced linux routing 
> howto, in the
> cookbook, that is named a thing like "the ultimate bw conditioner, 
> fast downloads and
> uploads and blablabla". Modify it by putting the ports that the RTP or 
> IAX stream pases,
> assigning them with a filter to the interactive class.
> Also don't forget to put the correct uplink and downlink values, or 
> you will be putting a
> bw restrictor.
>
> The thing that is very weird is that only inbound calls are affected, 
> I would think that
> both inbound and outbound calls were affected.
>
> --- asterisk-users-request at lists.digium.com wrote:
>
> Hi. I'm having a terrible time with call quality coming into my * box.
>
> I'm using VoicePulse over a 1.5/1.5 mbit line. Outbound calls are
> crystal clear on both the RX/TX sides of the conversation. Inbound
> calls, though, are HORRIBLY garbled on the RX side. I can barely hear
> the caller, but they report my quality is fine. Getting loads of
> garbled sounds and weird echoes. (Could just be jumbled up voice
> packets?)
>
>
> Miguel Ruiz Velasco
>
>
> 		
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